2 * class.c: Class management for the Mono runtime
5 * Miguel de Icaza (miguel@ximian.com)
7 * Copyright 2001-2003 Ximian, Inc (http://www.ximian.com)
8 * Copyright 2004-2009 Novell, Inc (http://www.novell.com)
19 #include <mono/io-layer/atomic.h>
21 #include <mono/metadata/image.h>
22 #include <mono/metadata/assembly.h>
23 #include <mono/metadata/metadata.h>
24 #include <mono/metadata/metadata-internals.h>
25 #include <mono/metadata/profiler-private.h>
26 #include <mono/metadata/tabledefs.h>
27 #include <mono/metadata/tokentype.h>
28 #include <mono/metadata/class-internals.h>
29 #include <mono/metadata/object.h>
30 #include <mono/metadata/appdomain.h>
31 #include <mono/metadata/mono-endian.h>
32 #include <mono/metadata/debug-helpers.h>
33 #include <mono/metadata/reflection.h>
34 #include <mono/metadata/exception.h>
35 #include <mono/metadata/security-manager.h>
36 #include <mono/metadata/security-core-clr.h>
37 #include <mono/metadata/attrdefs.h>
38 #include <mono/metadata/gc-internal.h>
39 #include <mono/metadata/verify-internals.h>
40 #include <mono/metadata/mono-debug.h>
41 #include <mono/utils/mono-counters.h>
45 gboolean mono_print_vtable = FALSE;
48 * Controls whenever mono_class_init () constructs a generic vtable. This is TRUE by
49 * default to avoid breaking embedding apps, but set to FALSE by the runtime executable
52 gboolean mono_setup_vtable_in_class_init = TRUE;
55 guint32 inflated_classes, inflated_classes_size, inflated_methods_size;
56 guint32 classes_size, class_ext_size;
58 /* Function supplied by the runtime to find classes by name using information from the AOT file */
59 static MonoGetClassFromName get_class_from_name = NULL;
61 static MonoClass * mono_class_create_from_typedef (MonoImage *image, guint32 type_token);
62 static gboolean mono_class_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res);
63 static gboolean can_access_type (MonoClass *access_klass, MonoClass *member_klass);
64 static MonoMethod* find_method_in_metadata (MonoClass *klass, const char *name, int param_count, int flags);
65 static int generic_array_methods (MonoClass *class);
66 static void setup_generic_array_ifaces (MonoClass *class, MonoClass *iface, MonoMethod **methods, int pos);
68 static MonoMethod* mono_class_get_virtual_methods (MonoClass* klass, gpointer *iter);
70 void (*mono_debugger_class_init_func) (MonoClass *klass) = NULL;
71 void (*mono_debugger_class_loaded_methods_func) (MonoClass *klass) = NULL;
74 * mono_class_from_typeref:
76 * @type_token: a TypeRef token
78 * Creates the MonoClass* structure representing the type defined by
79 * the typeref token valid inside @image.
80 * Returns: the MonoClass* representing the typeref token, NULL ifcould
84 mono_class_from_typeref (MonoImage *image, guint32 type_token)
86 guint32 cols [MONO_TYPEREF_SIZE];
87 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEREF];
89 const char *name, *nspace;
93 mono_metadata_decode_row (t, (type_token&0xffffff)-1, cols, MONO_TYPEREF_SIZE);
95 name = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAME]);
96 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAMESPACE]);
98 idx = cols [MONO_TYPEREF_SCOPE] >> MONO_RESOLTION_SCOPE_BITS;
99 switch (cols [MONO_TYPEREF_SCOPE] & MONO_RESOLTION_SCOPE_MASK) {
100 case MONO_RESOLTION_SCOPE_MODULE:
102 g_error ("null ResolutionScope not yet handled");
103 /* a typedef in disguise */
104 return mono_class_from_name (image, nspace, name);
105 case MONO_RESOLTION_SCOPE_MODULEREF:
106 module = mono_image_load_module (image, idx);
108 return mono_class_from_name (module, nspace, name);
110 char *msg = g_strdup_printf ("%s%s%s", nspace, nspace [0] ? "." : "", name);
113 human_name = mono_stringify_assembly_name (&image->assembly->aname);
114 mono_loader_set_error_type_load (msg, human_name);
120 case MONO_RESOLTION_SCOPE_TYPEREF: {
121 MonoClass *enclosing = mono_class_from_typeref (image, MONO_TOKEN_TYPE_REF | idx);
127 if (enclosing->nested_classes_inited && enclosing->ext) {
128 /* Micro-optimization: don't scan the metadata tables if enclosing is already inited */
129 for (tmp = enclosing->ext->nested_classes; tmp; tmp = tmp->next) {
131 if (strcmp (res->name, name) == 0)
135 /* Don't call mono_class_init as we might've been called by it recursively */
136 int i = mono_metadata_nesting_typedef (enclosing->image, enclosing->type_token, 1);
138 guint32 class_nested = mono_metadata_decode_row_col (&enclosing->image->tables [MONO_TABLE_NESTEDCLASS], i - 1, MONO_NESTED_CLASS_NESTED);
139 guint32 string_offset = mono_metadata_decode_row_col (&enclosing->image->tables [MONO_TABLE_TYPEDEF], class_nested - 1, MONO_TYPEDEF_NAME);
140 const char *nname = mono_metadata_string_heap (enclosing->image, string_offset);
142 if (strcmp (nname, name) == 0)
143 return mono_class_create_from_typedef (enclosing->image, MONO_TOKEN_TYPE_DEF | class_nested);
145 i = mono_metadata_nesting_typedef (enclosing->image, enclosing->type_token, i + 1);
148 g_warning ("TypeRef ResolutionScope not yet handled (%d) for %s.%s in image %s", idx, nspace, name, image->name);
151 case MONO_RESOLTION_SCOPE_ASSEMBLYREF:
155 if (!image->references || !image->references [idx - 1])
156 mono_assembly_load_reference (image, idx - 1);
157 g_assert (image->references [idx - 1]);
159 /* If the assembly did not load, register this as a type load exception */
160 if (image->references [idx - 1] == REFERENCE_MISSING){
161 MonoAssemblyName aname;
164 mono_assembly_get_assemblyref (image, idx - 1, &aname);
165 human_name = mono_stringify_assembly_name (&aname);
166 mono_loader_set_error_assembly_load (human_name, image->assembly->ref_only);
172 return mono_class_from_name (image->references [idx - 1]->image, nspace, name);
177 mono_image_memdup (MonoImage *image, void *data, guint size)
179 void *res = mono_image_alloc (image, size);
180 memcpy (res, data, size);
184 /* Copy everything mono_metadata_free_array free. */
186 mono_dup_array_type (MonoImage *image, MonoArrayType *a)
189 a = mono_image_memdup (image, a, sizeof (MonoArrayType));
191 a->sizes = mono_image_memdup (image, a->sizes, a->numsizes * sizeof (int));
193 a->lobounds = mono_image_memdup (image, a->lobounds, a->numlobounds * sizeof (int));
195 a = g_memdup (a, sizeof (MonoArrayType));
197 a->sizes = g_memdup (a->sizes, a->numsizes * sizeof (int));
199 a->lobounds = g_memdup (a->lobounds, a->numlobounds * sizeof (int));
204 /* Copy everything mono_metadata_free_method_signature free. */
206 mono_metadata_signature_deep_dup (MonoImage *image, MonoMethodSignature *sig)
210 sig = mono_metadata_signature_dup_full (image, sig);
212 sig->ret = mono_metadata_type_dup (image, sig->ret);
213 for (i = 0; i < sig->param_count; ++i)
214 sig->params [i] = mono_metadata_type_dup (image, sig->params [i]);
220 _mono_type_get_assembly_name (MonoClass *klass, GString *str)
222 MonoAssembly *ta = klass->image->assembly;
224 g_string_append_printf (
225 str, ", %s, Version=%d.%d.%d.%d, Culture=%s, PublicKeyToken=%s%s",
227 ta->aname.major, ta->aname.minor, ta->aname.build, ta->aname.revision,
228 ta->aname.culture && *ta->aname.culture? ta->aname.culture: "neutral",
229 ta->aname.public_key_token [0] ? (char *)ta->aname.public_key_token : "null",
230 (ta->aname.flags & ASSEMBLYREF_RETARGETABLE_FLAG) ? ", Retargetable=Yes" : "");
234 mono_type_name_check_byref (MonoType *type, GString *str)
237 g_string_append_c (str, '&');
241 mono_type_get_name_recurse (MonoType *type, GString *str, gboolean is_recursed,
242 MonoTypeNameFormat format)
246 switch (type->type) {
247 case MONO_TYPE_ARRAY: {
248 int i, rank = type->data.array->rank;
249 MonoTypeNameFormat nested_format;
251 nested_format = format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED ?
252 MONO_TYPE_NAME_FORMAT_FULL_NAME : format;
254 mono_type_get_name_recurse (
255 &type->data.array->eklass->byval_arg, str, FALSE, nested_format);
256 g_string_append_c (str, '[');
258 g_string_append_c (str, '*');
259 for (i = 1; i < rank; i++)
260 g_string_append_c (str, ',');
261 g_string_append_c (str, ']');
263 mono_type_name_check_byref (type, str);
265 if (format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED)
266 _mono_type_get_assembly_name (type->data.array->eklass, str);
269 case MONO_TYPE_SZARRAY: {
270 MonoTypeNameFormat nested_format;
272 nested_format = format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED ?
273 MONO_TYPE_NAME_FORMAT_FULL_NAME : format;
275 mono_type_get_name_recurse (
276 &type->data.klass->byval_arg, str, FALSE, nested_format);
277 g_string_append (str, "[]");
279 mono_type_name_check_byref (type, str);
281 if (format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED)
282 _mono_type_get_assembly_name (type->data.klass, str);
285 case MONO_TYPE_PTR: {
286 MonoTypeNameFormat nested_format;
288 nested_format = format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED ?
289 MONO_TYPE_NAME_FORMAT_FULL_NAME : format;
291 mono_type_get_name_recurse (
292 type->data.type, str, FALSE, nested_format);
293 g_string_append_c (str, '*');
295 mono_type_name_check_byref (type, str);
297 if (format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED)
298 _mono_type_get_assembly_name (mono_class_from_mono_type (type->data.type), str);
303 if (!mono_generic_param_info (type->data.generic_param))
304 g_string_append_printf (str, "%s%d", type->type == MONO_TYPE_VAR ? "!" : "!!", type->data.generic_param->num);
306 g_string_append (str, mono_generic_param_info (type->data.generic_param)->name);
308 mono_type_name_check_byref (type, str);
312 klass = mono_class_from_mono_type (type);
313 if (klass->nested_in) {
314 mono_type_get_name_recurse (
315 &klass->nested_in->byval_arg, str, TRUE, format);
316 if (format == MONO_TYPE_NAME_FORMAT_IL)
317 g_string_append_c (str, '.');
319 g_string_append_c (str, '+');
320 } else if (*klass->name_space) {
321 g_string_append (str, klass->name_space);
322 g_string_append_c (str, '.');
324 if (format == MONO_TYPE_NAME_FORMAT_IL) {
325 char *s = strchr (klass->name, '`');
326 int len = s ? s - klass->name : strlen (klass->name);
328 g_string_append_len (str, klass->name, len);
330 g_string_append (str, klass->name);
333 if (klass->generic_class) {
334 MonoGenericClass *gclass = klass->generic_class;
335 MonoGenericInst *inst = gclass->context.class_inst;
336 MonoTypeNameFormat nested_format;
339 nested_format = format == MONO_TYPE_NAME_FORMAT_FULL_NAME ?
340 MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED : format;
342 if (format == MONO_TYPE_NAME_FORMAT_IL)
343 g_string_append_c (str, '<');
345 g_string_append_c (str, '[');
346 for (i = 0; i < inst->type_argc; i++) {
347 MonoType *t = inst->type_argv [i];
350 g_string_append_c (str, ',');
351 if ((nested_format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED) &&
352 (t->type != MONO_TYPE_VAR) && (type->type != MONO_TYPE_MVAR))
353 g_string_append_c (str, '[');
354 mono_type_get_name_recurse (inst->type_argv [i], str, FALSE, nested_format);
355 if ((nested_format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED) &&
356 (t->type != MONO_TYPE_VAR) && (type->type != MONO_TYPE_MVAR))
357 g_string_append_c (str, ']');
359 if (format == MONO_TYPE_NAME_FORMAT_IL)
360 g_string_append_c (str, '>');
362 g_string_append_c (str, ']');
363 } else if (klass->generic_container &&
364 (format != MONO_TYPE_NAME_FORMAT_FULL_NAME) &&
365 (format != MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED)) {
368 if (format == MONO_TYPE_NAME_FORMAT_IL)
369 g_string_append_c (str, '<');
371 g_string_append_c (str, '[');
372 for (i = 0; i < klass->generic_container->type_argc; i++) {
374 g_string_append_c (str, ',');
375 g_string_append (str, mono_generic_container_get_param_info (klass->generic_container, i)->name);
377 if (format == MONO_TYPE_NAME_FORMAT_IL)
378 g_string_append_c (str, '>');
380 g_string_append_c (str, ']');
383 mono_type_name_check_byref (type, str);
385 if ((format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED) &&
386 (type->type != MONO_TYPE_VAR) && (type->type != MONO_TYPE_MVAR))
387 _mono_type_get_assembly_name (klass, str);
393 * mono_type_get_name_full:
395 * @format: the format for the return string.
398 * Returns: the string representation in a number of formats:
400 * if format is MONO_TYPE_NAME_FORMAT_REFLECTION, the return string is
401 * returned in the formatrequired by System.Reflection, this is the
402 * inverse of mono_reflection_parse_type ().
404 * if format is MONO_TYPE_NAME_FORMAT_IL, it returns a syntax that can
405 * be used by the IL assembler.
407 * if format is MONO_TYPE_NAME_FORMAT_FULL_NAME
409 * if format is MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED
412 mono_type_get_name_full (MonoType *type, MonoTypeNameFormat format)
416 result = g_string_new ("");
418 mono_type_get_name_recurse (type, result, FALSE, format);
420 return g_string_free (result, FALSE);
424 * mono_type_get_full_name:
427 * Returns: the string representation for type as required by System.Reflection.
428 * The inverse of mono_reflection_parse_type ().
431 mono_type_get_full_name (MonoClass *class)
433 return mono_type_get_name_full (mono_class_get_type (class), MONO_TYPE_NAME_FORMAT_REFLECTION);
437 * mono_type_get_name:
440 * Returns: the string representation for type as it would be represented in IL code.
443 mono_type_get_name (MonoType *type)
445 return mono_type_get_name_full (type, MONO_TYPE_NAME_FORMAT_IL);
449 * mono_type_get_underlying_type:
452 * Returns: the MonoType for the underlying integer type if @type
453 * is an enum and byref is false, otherwise the type itself.
456 mono_type_get_underlying_type (MonoType *type)
458 if (type->type == MONO_TYPE_VALUETYPE && type->data.klass->enumtype && !type->byref)
459 return mono_class_enum_basetype (type->data.klass);
460 if (type->type == MONO_TYPE_GENERICINST && type->data.generic_class->container_class->enumtype && !type->byref)
461 return mono_class_enum_basetype (type->data.generic_class->container_class);
466 * mono_class_is_open_constructed_type:
469 * Returns TRUE if type represents a generics open constructed type
470 * (not all the type parameters required for the instantiation have
474 mono_class_is_open_constructed_type (MonoType *t)
480 case MONO_TYPE_SZARRAY:
481 return mono_class_is_open_constructed_type (&t->data.klass->byval_arg);
482 case MONO_TYPE_ARRAY:
483 return mono_class_is_open_constructed_type (&t->data.array->eklass->byval_arg);
485 return mono_class_is_open_constructed_type (t->data.type);
486 case MONO_TYPE_GENERICINST:
487 return t->data.generic_class->context.class_inst->is_open;
494 inflate_generic_type (MonoImage *image, MonoType *type, MonoGenericContext *context)
496 switch (type->type) {
497 case MONO_TYPE_MVAR: {
499 int num = mono_type_get_generic_param_num (type);
500 MonoGenericInst *inst = context->method_inst;
501 if (!inst || !inst->type_argv)
503 if (num >= inst->type_argc) {
504 MonoGenericParamInfo *info = mono_generic_param_info (type->data.generic_param);
505 g_error ("MVAR %d (%s) cannot be expanded in this context with %d instantiations",
506 num, info ? info->name : "", inst->type_argc);
510 * Note that the VAR/MVAR cases are different from the rest. The other cases duplicate @type,
511 * while the VAR/MVAR duplicates a type from the context. So, we need to ensure that the
512 * ->byref and ->attrs from @type are propagated to the returned type.
514 nt = mono_metadata_type_dup (image, inst->type_argv [num]);
515 nt->byref = type->byref;
516 nt->attrs = type->attrs;
519 case MONO_TYPE_VAR: {
521 int num = mono_type_get_generic_param_num (type);
522 MonoGenericInst *inst = context->class_inst;
525 if (num >= inst->type_argc) {
526 MonoGenericParamInfo *info = mono_generic_param_info (type->data.generic_param);
527 g_error ("VAR %d (%s) cannot be expanded in this context with %d instantiations",
528 num, info ? info->name : "", inst->type_argc);
530 nt = mono_metadata_type_dup (image, inst->type_argv [num]);
531 nt->byref = type->byref;
532 nt->attrs = type->attrs;
535 case MONO_TYPE_SZARRAY: {
536 MonoClass *eclass = type->data.klass;
537 MonoType *nt, *inflated = inflate_generic_type (NULL, &eclass->byval_arg, context);
540 nt = mono_metadata_type_dup (image, type);
541 nt->data.klass = mono_class_from_mono_type (inflated);
542 mono_metadata_free_type (inflated);
545 case MONO_TYPE_ARRAY: {
546 MonoClass *eclass = type->data.array->eklass;
547 MonoType *nt, *inflated = inflate_generic_type (NULL, &eclass->byval_arg, context);
550 nt = mono_metadata_type_dup (image, type);
551 nt->data.array = g_memdup (nt->data.array, sizeof (MonoArrayType));
552 nt->data.array->eklass = mono_class_from_mono_type (inflated);
553 mono_metadata_free_type (inflated);
556 case MONO_TYPE_GENERICINST: {
557 MonoGenericClass *gclass = type->data.generic_class;
558 MonoGenericInst *inst;
560 if (!gclass->context.class_inst->is_open)
563 inst = mono_metadata_inflate_generic_inst (gclass->context.class_inst, context);
564 if (inst != gclass->context.class_inst)
565 gclass = mono_metadata_lookup_generic_class (gclass->container_class, inst, gclass->is_dynamic);
567 if (gclass == type->data.generic_class)
570 nt = mono_metadata_type_dup (image, type);
571 nt->data.generic_class = gclass;
574 case MONO_TYPE_CLASS:
575 case MONO_TYPE_VALUETYPE: {
576 MonoClass *klass = type->data.klass;
577 MonoGenericContainer *container = klass->generic_container;
578 MonoGenericInst *inst;
579 MonoGenericClass *gclass = NULL;
585 /* We can't use context->class_inst directly, since it can have more elements */
586 inst = mono_metadata_inflate_generic_inst (container->context.class_inst, context);
587 if (inst == container->context.class_inst)
590 gclass = mono_metadata_lookup_generic_class (klass, inst, klass->image->dynamic);
592 nt = mono_metadata_type_dup (image, type);
593 nt->type = MONO_TYPE_GENERICINST;
594 nt->data.generic_class = gclass;
604 mono_generic_class_get_context (MonoGenericClass *gclass)
606 return &gclass->context;
610 mono_class_get_context (MonoClass *class)
612 return class->generic_class ? mono_generic_class_get_context (class->generic_class) : NULL;
616 * mono_class_get_generic_container:
618 * Return the generic container of KLASS which should be a generic type definition.
620 MonoGenericContainer*
621 mono_class_get_generic_container (MonoClass *klass)
623 g_assert (klass->is_generic);
625 return klass->generic_container;
629 * mono_class_get_generic_class:
631 * Return the MonoGenericClass of KLASS, which should be a generic instance.
634 mono_class_get_generic_class (MonoClass *klass)
636 g_assert (klass->is_inflated);
638 return klass->generic_class;
642 * mono_class_inflate_generic_type_with_mempool:
643 * @mempool: a mempool
645 * @context: a generics context
647 * The same as mono_class_inflate_generic_type, but allocates the MonoType
648 * from mempool if it is non-NULL. If it is NULL, the MonoType is
649 * allocated on the heap and is owned by the caller.
650 * The returned type can potentially be the same as TYPE, so it should not be
651 * modified by the caller, and it should be freed using mono_metadata_free_type ().
654 mono_class_inflate_generic_type_with_mempool (MonoImage *image, MonoType *type, MonoGenericContext *context)
656 MonoType *inflated = NULL;
659 inflated = inflate_generic_type (image, type, context);
662 MonoType *shared = mono_metadata_get_shared_type (type);
667 return mono_metadata_type_dup (image, type);
671 mono_stats.inflated_type_count++;
676 * mono_class_inflate_generic_type:
678 * @context: a generics context
680 * If @type is a generic type and @context is not NULL, instantiate it using the
681 * generics context @context.
683 * Returns: the instantiated type or a copy of @type. The returned MonoType is allocated
684 * on the heap and is owned by the caller.
687 mono_class_inflate_generic_type (MonoType *type, MonoGenericContext *context)
689 return mono_class_inflate_generic_type_with_mempool (NULL, type, context);
693 * mono_class_inflate_generic_type_no_copy:
695 * Same as inflate_generic_type_with_mempool, but return TYPE if no inflation
699 mono_class_inflate_generic_type_no_copy (MonoImage *image, MonoType *type, MonoGenericContext *context)
701 MonoType *inflated = NULL;
704 inflated = inflate_generic_type (image, type, context);
709 mono_stats.inflated_type_count++;
714 * mono_class_inflate_generic_class:
716 * Inflate the class GKLASS with CONTEXT.
719 mono_class_inflate_generic_class (MonoClass *gklass, MonoGenericContext *context)
724 inflated = mono_class_inflate_generic_type (&gklass->byval_arg, context);
726 res = mono_class_from_mono_type (inflated);
727 mono_metadata_free_type (inflated);
732 static MonoGenericContext
733 inflate_generic_context (MonoGenericContext *context, MonoGenericContext *inflate_with)
735 MonoGenericInst *class_inst = NULL;
736 MonoGenericInst *method_inst = NULL;
737 MonoGenericContext res;
739 if (context->class_inst)
740 class_inst = mono_metadata_inflate_generic_inst (context->class_inst, inflate_with);
742 if (context->method_inst)
743 method_inst = mono_metadata_inflate_generic_inst (context->method_inst, inflate_with);
745 res.class_inst = class_inst;
746 res.method_inst = method_inst;
752 * mono_class_inflate_generic_method:
753 * @method: a generic method
754 * @context: a generics context
756 * Instantiate the generic method @method using the generics context @context.
758 * Returns: the new instantiated method
761 mono_class_inflate_generic_method (MonoMethod *method, MonoGenericContext *context)
763 return mono_class_inflate_generic_method_full (method, NULL, context);
767 * mono_class_inflate_generic_method_full:
769 * Instantiate method @method with the generic context @context.
770 * BEWARE: All non-trivial fields are invalid, including klass, signature, and header.
771 * Use mono_method_signature () and mono_method_get_header () to get the correct values.
774 mono_class_inflate_generic_method_full (MonoMethod *method, MonoClass *klass_hint, MonoGenericContext *context)
777 MonoMethodInflated *iresult, *cached;
778 MonoMethodSignature *sig;
779 MonoGenericContext tmp_context;
780 gboolean is_mb_open = FALSE;
782 /* The `method' has already been instantiated before => we need to peel out the instantiation and create a new context */
783 while (method->is_inflated) {
784 MonoGenericContext *method_context = mono_method_get_context (method);
785 MonoMethodInflated *imethod = (MonoMethodInflated *) method;
787 tmp_context = inflate_generic_context (method_context, context);
788 context = &tmp_context;
790 if (mono_metadata_generic_context_equal (method_context, context))
793 method = imethod->declaring;
796 if (!method->is_generic && !method->klass->generic_container)
800 * The reason for this hack is to fix the behavior of inflating generic methods that come from a MethodBuilder.
801 * What happens is that instantiating a generic MethodBuilder with its own arguments should create a diferent object.
802 * This is opposite to the way non-SRE MethodInfos behave.
804 * This happens, for example, when we want to emit a recursive generic method. Given the following C# code:
806 * void Example<T> () {
810 * In Example, the method token must be encoded as: "void Example<!!0>()"
812 * The reference to the first generic argument, "!!0", must be explicit otherwise it won't be inflated
813 * properly. To get that we need to inflate the MethodBuilder with its own arguments.
815 * On the other hand, inflating a non-SRE generic method with its own arguments should
816 * return itself. For example:
818 * MethodInfo m = ... //m is a generic method definition
819 * MethodInfo res = m.MakeGenericMethod (m.GetGenericArguments ());
822 * To allow such scenarios we must allow inflation of MethodBuilder to happen in a diferent way than
823 * what happens with regular methods.
825 * There is one last touch to this madness, once a TypeBuilder is finished, IOW CreateType() is called,
826 * everything should behave like a regular type or method.
829 is_mb_open = method->is_generic &&
830 method->klass->image->dynamic && !method->klass->wastypebuilder && /* that is a MethodBuilder from an unfinished TypeBuilder */
831 context->method_inst == mono_method_get_generic_container (method)->context.method_inst; /* and it's been instantiated with its own arguments. */
833 iresult = g_new0 (MonoMethodInflated, 1);
834 iresult->context = *context;
835 iresult->declaring = method;
836 iresult->method.method.is_mb_open = is_mb_open;
838 if (!context->method_inst && method->is_generic)
839 iresult->context.method_inst = mono_method_get_generic_container (method)->context.method_inst;
841 if (!context->class_inst) {
842 g_assert (!iresult->declaring->klass->generic_class);
843 if (iresult->declaring->klass->generic_container)
844 iresult->context.class_inst = iresult->declaring->klass->generic_container->context.class_inst;
845 else if (iresult->declaring->klass->generic_class)
846 iresult->context.class_inst = iresult->declaring->klass->generic_class->context.class_inst;
850 cached = mono_method_inflated_lookup (iresult, FALSE);
852 mono_loader_unlock ();
854 return (MonoMethod*)cached;
857 mono_stats.inflated_method_count++;
859 inflated_methods_size += sizeof (MonoMethodInflated);
861 sig = mono_method_signature (method);
863 memcpy (&iresult->method.pinvoke, method, sizeof (MonoMethodPInvoke));
865 memcpy (&iresult->method.normal, method, sizeof (MonoMethodNormal));
866 iresult->method.normal.header = NULL;
869 result = (MonoMethod *) iresult;
870 result->is_inflated = TRUE;
871 result->is_generic = FALSE;
872 result->signature = NULL;
873 result->is_mb_open = is_mb_open;
875 if (!context->method_inst) {
876 /* Set the generic_container of the result to the generic_container of method */
877 MonoGenericContainer *generic_container = mono_method_get_generic_container (method);
879 if (generic_container) {
880 result->is_generic = 1;
881 mono_method_set_generic_container (result, generic_container);
885 if (!klass_hint || !klass_hint->generic_class ||
886 klass_hint->generic_class->container_class != method->klass ||
887 klass_hint->generic_class->context.class_inst != context->class_inst)
890 if (method->klass->generic_container)
891 result->klass = klass_hint;
893 if (!result->klass) {
894 MonoType *inflated = inflate_generic_type (NULL, &method->klass->byval_arg, context);
895 result->klass = inflated ? mono_class_from_mono_type (inflated) : method->klass;
897 mono_metadata_free_type (inflated);
900 mono_method_inflated_lookup (iresult, TRUE);
901 mono_loader_unlock ();
906 * mono_get_inflated_method:
908 * Obsolete. We keep it around since it's mentioned in the public API.
911 mono_get_inflated_method (MonoMethod *method)
917 * mono_method_get_context_general:
919 * @uninflated: handle uninflated methods?
921 * Returns the generic context of a method or NULL if it doesn't have
922 * one. For an inflated method that's the context stored in the
923 * method. Otherwise it's in the method's generic container or in the
924 * generic container of the method's class.
927 mono_method_get_context_general (MonoMethod *method, gboolean uninflated)
929 if (method->is_inflated) {
930 MonoMethodInflated *imethod = (MonoMethodInflated *) method;
931 return &imethod->context;
935 if (method->is_generic)
936 return &(mono_method_get_generic_container (method)->context);
937 if (method->klass->generic_container)
938 return &method->klass->generic_container->context;
943 * mono_method_get_context:
946 * Returns the generic context for method if it's inflated, otherwise
950 mono_method_get_context (MonoMethod *method)
952 return mono_method_get_context_general (method, FALSE);
956 * mono_method_get_generic_container:
958 * Returns the generic container of METHOD, which should be a generic method definition.
959 * Returns NULL if METHOD is not a generic method definition.
960 * LOCKING: Acquires the loader lock.
962 MonoGenericContainer*
963 mono_method_get_generic_container (MonoMethod *method)
965 MonoGenericContainer *container;
967 if (!method->is_generic)
970 container = mono_image_property_lookup (method->klass->image, method, MONO_METHOD_PROP_GENERIC_CONTAINER);
971 g_assert (container);
977 * mono_method_set_generic_container:
979 * Sets the generic container of METHOD to CONTAINER.
980 * LOCKING: Acquires the loader lock.
983 mono_method_set_generic_container (MonoMethod *method, MonoGenericContainer* container)
985 g_assert (method->is_generic);
987 mono_image_property_insert (method->klass->image, method, MONO_METHOD_PROP_GENERIC_CONTAINER, container);
991 * mono_class_find_enum_basetype:
992 * @class: The enum class
994 * Determine the basetype of an enum by iterating through its fields. We do this
995 * in a separate function since it is cheaper than calling mono_class_setup_fields.
998 mono_class_find_enum_basetype (MonoClass *class)
1000 MonoGenericContainer *container = NULL;
1001 MonoImage *m = class->image;
1002 const int top = class->field.count;
1005 g_assert (class->enumtype);
1007 if (class->generic_container)
1008 container = class->generic_container;
1009 else if (class->generic_class) {
1010 MonoClass *gklass = class->generic_class->container_class;
1012 container = gklass->generic_container;
1013 g_assert (container);
1017 * Fetch all the field information.
1019 for (i = 0; i < top; i++){
1021 guint32 cols [MONO_FIELD_SIZE];
1022 int idx = class->field.first + i;
1025 /* class->field.first and idx points into the fieldptr table */
1026 mono_metadata_decode_table_row (m, MONO_TABLE_FIELD, idx, cols, MONO_FIELD_SIZE);
1028 if (cols [MONO_FIELD_FLAGS] & FIELD_ATTRIBUTE_STATIC) //no need to decode static fields
1031 if (!mono_verifier_verify_field_signature (class->image, cols [MONO_FIELD_SIGNATURE], NULL))
1034 sig = mono_metadata_blob_heap (m, cols [MONO_FIELD_SIGNATURE]);
1035 mono_metadata_decode_value (sig, &sig);
1036 /* FIELD signature == 0x06 */
1040 ftype = mono_metadata_parse_type_full (m, container, MONO_PARSE_FIELD, cols [MONO_FIELD_FLAGS], sig + 1, &sig);
1043 if (class->generic_class) {
1044 //FIXME do we leak here?
1045 ftype = mono_class_inflate_generic_type (ftype, mono_class_get_context (class));
1046 ftype->attrs = cols [MONO_FIELD_FLAGS];
1056 * mono_class_setup_fields:
1057 * @class: The class to initialize
1059 * Initializes the class->fields.
1060 * LOCKING: Assumes the loader lock is held.
1063 mono_class_setup_fields (MonoClass *class)
1065 MonoImage *m = class->image;
1066 int top = class->field.count;
1067 guint32 layout = class->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
1068 int i, blittable = TRUE;
1069 guint32 real_size = 0;
1070 guint32 packing_size = 0;
1071 gboolean explicit_size;
1072 MonoClassField *field;
1073 MonoGenericContainer *container = NULL;
1074 MonoClass *gtd = class->generic_class ? mono_class_get_generic_type_definition (class) : NULL;
1076 if (class->size_inited)
1079 if (class->generic_class && class->generic_class->container_class->image->dynamic && !class->generic_class->container_class->wastypebuilder) {
1081 * This happens when a generic instance of an unfinished generic typebuilder
1082 * is used as an element type for creating an array type. We can't initialize
1083 * the fields of this class using the fields of gklass, since gklass is not
1084 * finished yet, fields could be added to it later.
1090 mono_class_setup_fields (gtd);
1091 if (gtd->exception_type) {
1092 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1096 top = gtd->field.count;
1097 class->field.first = gtd->field.first;
1098 class->field.count = gtd->field.count;
1101 class->instance_size = 0;
1103 class->sizes.class_size = 0;
1105 if (class->parent) {
1106 /* For generic instances, class->parent might not have been initialized */
1107 mono_class_init (class->parent);
1108 if (!class->parent->size_inited)
1109 mono_class_setup_fields (class->parent);
1110 class->instance_size += class->parent->instance_size;
1111 class->min_align = class->parent->min_align;
1112 /* we use |= since it may have been set already */
1113 class->has_references |= class->parent->has_references;
1114 blittable = class->parent->blittable;
1116 class->instance_size = sizeof (MonoObject);
1117 class->min_align = 1;
1120 /* We can't really enable 16 bytes alignment until the GC supports it.
1121 The whole layout/instance size code must be reviewed because we do alignment calculation in terms of the
1122 boxed instance, which leads to unexplainable holes at the beginning of an object embedding a simd type.
1123 Bug #506144 is an example of this issue.
1125 if (class->simd_type)
1126 class->min_align = 16;
1128 /* Get the real size */
1129 explicit_size = mono_metadata_packing_from_typedef (class->image, class->type_token, &packing_size, &real_size);
1131 if (explicit_size) {
1132 g_assert ((packing_size & 0xfffffff0) == 0);
1133 class->packing_size = packing_size;
1134 real_size += class->instance_size;
1138 if (explicit_size && real_size) {
1139 class->instance_size = MAX (real_size, class->instance_size);
1141 class->size_inited = 1;
1142 class->blittable = blittable;
1146 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT)
1149 /* Prevent infinite loops if the class references itself */
1150 class->size_inited = 1;
1152 class->fields = mono_image_alloc0 (class->image, sizeof (MonoClassField) * top);
1154 if (class->generic_container) {
1155 container = class->generic_container;
1157 container = gtd->generic_container;
1158 g_assert (container);
1162 * Fetch all the field information.
1164 for (i = 0; i < top; i++){
1165 int idx = class->field.first + i;
1166 field = &class->fields [i];
1168 field->parent = class;
1171 MonoClassField *gfield = >d->fields [i];
1173 field->name = mono_field_get_name (gfield);
1174 /*This memory must come from the image mempool as we don't have a chance to free it.*/
1175 field->type = mono_class_inflate_generic_type_no_copy (class->image, gfield->type, mono_class_get_context (class));
1176 g_assert (field->type->attrs == gfield->type->attrs);
1177 if (mono_field_is_deleted (field))
1179 field->offset = gfield->offset;
1182 guint32 cols [MONO_FIELD_SIZE];
1184 /* class->field.first and idx points into the fieldptr table */
1185 mono_metadata_decode_table_row (m, MONO_TABLE_FIELD, idx, cols, MONO_FIELD_SIZE);
1186 /* The name is needed for fieldrefs */
1187 field->name = mono_metadata_string_heap (m, cols [MONO_FIELD_NAME]);
1188 if (!mono_verifier_verify_field_signature (class->image, cols [MONO_FIELD_SIGNATURE], NULL)) {
1189 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1192 sig = mono_metadata_blob_heap (m, cols [MONO_FIELD_SIGNATURE]);
1193 mono_metadata_decode_value (sig, &sig);
1194 /* FIELD signature == 0x06 */
1195 g_assert (*sig == 0x06);
1196 field->type = mono_metadata_parse_type_full (m, container, MONO_PARSE_FIELD, cols [MONO_FIELD_FLAGS], sig + 1, &sig);
1198 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1201 if (mono_field_is_deleted (field))
1203 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
1205 mono_metadata_field_info (m, idx, &offset, NULL, NULL);
1206 field->offset = offset;
1207 if (field->offset == (guint32)-1 && !(field->type->attrs & FIELD_ATTRIBUTE_STATIC))
1208 g_warning ("%s not initialized correctly (missing field layout info for %s)",
1209 class->name, mono_field_get_name (field));
1213 /* Only do these checks if we still think this type is blittable */
1214 if (blittable && !(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
1215 if (field->type->byref || MONO_TYPE_IS_REFERENCE (field->type)) {
1218 MonoClass *field_class = mono_class_from_mono_type (field->type);
1220 mono_class_setup_fields (field_class);
1221 if (!field_class || !field_class->blittable)
1226 if (class->enumtype && !(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
1227 class->cast_class = class->element_class = mono_class_from_mono_type (field->type);
1228 blittable = class->element_class->blittable;
1231 /* The def_value of fields is compute lazily during vtable creation */
1234 if (class == mono_defaults.string_class)
1237 class->blittable = blittable;
1239 if (class->enumtype && !mono_class_enum_basetype (class)) {
1240 if (!((strcmp (class->name, "Enum") == 0) && (strcmp (class->name_space, "System") == 0)))
1243 if (explicit_size && real_size) {
1244 class->instance_size = MAX (real_size, class->instance_size);
1247 if (class->exception_type)
1249 mono_class_layout_fields (class);
1253 * mono_class_setup_fields_locking:
1254 * @class: The class to initialize
1256 * Initializes the class->fields array of fields.
1257 * Aquires the loader lock.
1260 mono_class_setup_fields_locking (MonoClass *class)
1262 mono_loader_lock ();
1263 mono_class_setup_fields (class);
1264 mono_loader_unlock ();
1268 * mono_class_has_references:
1270 * Returns whenever @klass->has_references is set, initializing it if needed.
1271 * Aquires the loader lock.
1274 mono_class_has_references (MonoClass *klass)
1276 if (klass->init_pending) {
1277 /* Be conservative */
1280 mono_class_init (klass);
1282 return klass->has_references;
1286 /* useful until we keep track of gc-references in corlib etc. */
1288 #define IS_GC_REFERENCE(t) FALSE
1290 #define IS_GC_REFERENCE(t) ((t)->type == MONO_TYPE_U && class->image == mono_defaults.corlib)
1294 * mono_type_get_basic_type_from_generic:
1297 * Returns a closed type corresponding to the possibly open type
1301 mono_type_get_basic_type_from_generic (MonoType *type)
1303 /* When we do generic sharing we let type variables stand for reference types. */
1304 if (!type->byref && (type->type == MONO_TYPE_VAR || type->type == MONO_TYPE_MVAR))
1305 return &mono_defaults.object_class->byval_arg;
1310 * mono_class_layout_fields:
1313 * Compute the placement of fields inside an object or struct, according to
1314 * the layout rules and set the following fields in @class:
1315 * - has_references (if the class contains instance references firled or structs that contain references)
1316 * - has_static_refs (same, but for static fields)
1317 * - instance_size (size of the object in memory)
1318 * - class_size (size needed for the static fields)
1319 * - size_inited (flag set when the instance_size is set)
1321 * LOCKING: this is supposed to be called with the loader lock held.
1324 mono_class_layout_fields (MonoClass *class)
1327 const int top = class->field.count;
1328 guint32 layout = class->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
1329 guint32 pass, passes, real_size;
1330 gboolean gc_aware_layout = FALSE;
1331 MonoClassField *field;
1334 * When we do generic sharing we need to have layout
1335 * information for open generic classes (either with a generic
1336 * context containing type variables or with a generic
1337 * container), so we don't return in that case anymore.
1341 * Enable GC aware auto layout: in this mode, reference
1342 * fields are grouped together inside objects, increasing collector
1344 * Requires that all classes whose layout is known to native code be annotated
1345 * with [StructLayout (LayoutKind.Sequential)]
1346 * Value types have gc_aware_layout disabled by default, as per
1347 * what the default is for other runtimes.
1349 /* corlib is missing [StructLayout] directives in many places */
1350 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1351 if (class->image != mono_defaults.corlib &&
1352 class->byval_arg.type != MONO_TYPE_VALUETYPE)
1353 gc_aware_layout = TRUE;
1354 /* from System.dll, used in metadata/process.h */
1355 if (strcmp (class->name, "ProcessStartInfo") == 0)
1356 gc_aware_layout = FALSE;
1359 /* Compute klass->has_references */
1361 * Process non-static fields first, since static fields might recursively
1362 * refer to the class itself.
1364 for (i = 0; i < top; i++) {
1367 field = &class->fields [i];
1369 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
1370 ftype = mono_type_get_underlying_type (field->type);
1371 ftype = mono_type_get_basic_type_from_generic (ftype);
1372 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype)))))
1373 class->has_references = TRUE;
1377 for (i = 0; i < top; i++) {
1380 field = &class->fields [i];
1382 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC) {
1383 ftype = mono_type_get_underlying_type (field->type);
1384 ftype = mono_type_get_basic_type_from_generic (ftype);
1385 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype)))))
1386 class->has_static_refs = TRUE;
1390 for (i = 0; i < top; i++) {
1393 field = &class->fields [i];
1395 ftype = mono_type_get_underlying_type (field->type);
1396 ftype = mono_type_get_basic_type_from_generic (ftype);
1397 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype))))) {
1398 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
1399 class->has_static_refs = TRUE;
1401 class->has_references = TRUE;
1406 * Compute field layout and total size (not considering static fields)
1410 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
1411 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
1413 if (gc_aware_layout)
1418 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT)
1422 real_size = class->parent->instance_size;
1424 real_size = sizeof (MonoObject);
1426 for (pass = 0; pass < passes; ++pass) {
1427 for (i = 0; i < top; i++){
1432 field = &class->fields [i];
1434 if (mono_field_is_deleted (field))
1436 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
1439 ftype = mono_type_get_underlying_type (field->type);
1440 ftype = mono_type_get_basic_type_from_generic (ftype);
1441 if (gc_aware_layout) {
1442 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype))))) {
1451 if ((top == 1) && (class->instance_size == sizeof (MonoObject)) &&
1452 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
1453 /* This field is a hack inserted by MCS to empty structures */
1457 size = mono_type_size (field->type, &align);
1459 /* FIXME (LAMESPEC): should we also change the min alignment according to pack? */
1460 align = class->packing_size ? MIN (class->packing_size, align): align;
1461 /* if the field has managed references, we need to force-align it
1464 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype)))))
1465 align = MAX (align, sizeof (gpointer));
1467 class->min_align = MAX (align, class->min_align);
1468 field->offset = real_size;
1469 field->offset += align - 1;
1470 field->offset &= ~(align - 1);
1471 real_size = field->offset + size;
1474 class->instance_size = MAX (real_size, class->instance_size);
1476 if (class->instance_size & (class->min_align - 1)) {
1477 class->instance_size += class->min_align - 1;
1478 class->instance_size &= ~(class->min_align - 1);
1482 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
1484 for (i = 0; i < top; i++) {
1489 field = &class->fields [i];
1492 * There must be info about all the fields in a type if it
1493 * uses explicit layout.
1496 if (mono_field_is_deleted (field))
1498 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
1501 size = mono_type_size (field->type, &align);
1502 class->min_align = MAX (align, class->min_align);
1505 * When we get here, field->offset is already set by the
1506 * loader (for either runtime fields or fields loaded from metadata).
1507 * The offset is from the start of the object: this works for both
1508 * classes and valuetypes.
1510 field->offset += sizeof (MonoObject);
1511 ftype = mono_type_get_underlying_type (field->type);
1512 ftype = mono_type_get_basic_type_from_generic (ftype);
1513 if (MONO_TYPE_IS_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype))))) {
1514 if (field->offset % sizeof (gpointer)) {
1515 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1522 real_size = MAX (real_size, size + field->offset);
1524 class->instance_size = MAX (real_size, class->instance_size);
1528 if (layout != TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
1530 * For small structs, set min_align to at least the struct size to improve
1531 * performance, and since the JIT memset/memcpy code assumes this and generates
1532 * unaligned accesses otherwise. See #78990 for a testcase.
1534 if (class->instance_size <= sizeof (MonoObject) + sizeof (gpointer))
1535 class->min_align = MAX (class->min_align, class->instance_size - sizeof (MonoObject));
1538 class->size_inited = 1;
1541 * Compute static field layout and size
1543 for (i = 0; i < top; i++){
1547 field = &class->fields [i];
1549 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC) || field->type->attrs & FIELD_ATTRIBUTE_LITERAL)
1551 if (mono_field_is_deleted (field))
1554 size = mono_type_size (field->type, &align);
1555 field->offset = class->sizes.class_size;
1556 field->offset += align - 1;
1557 field->offset &= ~(align - 1);
1558 class->sizes.class_size = field->offset + size;
1563 create_array_method (MonoClass *class, const char *name, MonoMethodSignature *sig)
1567 method = (MonoMethod *) mono_image_alloc0 (class->image, sizeof (MonoMethodPInvoke));
1568 method->klass = class;
1569 method->flags = METHOD_ATTRIBUTE_PUBLIC;
1570 method->iflags = METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL;
1571 method->signature = sig;
1572 method->name = name;
1575 if (name [0] == '.') {
1576 method->flags |= METHOD_ATTRIBUTE_RT_SPECIAL_NAME | METHOD_ATTRIBUTE_SPECIAL_NAME;
1578 method->iflags |= METHOD_IMPL_ATTRIBUTE_RUNTIME;
1584 * mono_class_setup_methods:
1587 * Initializes the 'methods' array in the klass.
1588 * Calling this method should be avoided if possible since it allocates a lot
1589 * of long-living MonoMethod structures.
1590 * Methods belonging to an interface are assigned a sequential slot starting
1594 mono_class_setup_methods (MonoClass *class)
1597 MonoMethod **methods;
1602 mono_loader_lock ();
1604 if (class->methods) {
1605 mono_loader_unlock ();
1609 if (class->generic_class) {
1610 MonoClass *gklass = class->generic_class->container_class;
1612 mono_class_init (gklass);
1613 mono_class_setup_methods (gklass);
1615 /* The + 1 makes this always non-NULL to pass the check in mono_class_setup_methods () */
1616 class->method.count = gklass->method.count;
1617 methods = g_new0 (MonoMethod *, class->method.count + 1);
1619 for (i = 0; i < class->method.count; i++) {
1620 methods [i] = mono_class_inflate_generic_method_full (
1621 gklass->methods [i], class, mono_class_get_context (class));
1623 } else if (class->rank) {
1624 MonoMethod *amethod;
1625 MonoMethodSignature *sig;
1626 int count_generic = 0, first_generic = 0;
1629 class->method.count = 3 + (class->rank > 1? 2: 1);
1631 mono_class_setup_interfaces (class);
1633 if (class->interface_count) {
1634 count_generic = generic_array_methods (class);
1635 first_generic = class->method.count;
1636 class->method.count += class->interface_count * count_generic;
1639 methods = mono_image_alloc0 (class->image, sizeof (MonoMethod*) * class->method.count);
1641 sig = mono_metadata_signature_alloc (class->image, class->rank);
1642 sig->ret = &mono_defaults.void_class->byval_arg;
1643 sig->pinvoke = TRUE;
1644 sig->hasthis = TRUE;
1645 for (i = 0; i < class->rank; ++i)
1646 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1648 amethod = create_array_method (class, ".ctor", sig);
1649 methods [method_num++] = amethod;
1650 if (class->rank > 1) {
1651 sig = mono_metadata_signature_alloc (class->image, class->rank * 2);
1652 sig->ret = &mono_defaults.void_class->byval_arg;
1653 sig->pinvoke = TRUE;
1654 sig->hasthis = TRUE;
1655 for (i = 0; i < class->rank * 2; ++i)
1656 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1658 amethod = create_array_method (class, ".ctor", sig);
1659 methods [method_num++] = amethod;
1661 /* element Get (idx11, [idx2, ...]) */
1662 sig = mono_metadata_signature_alloc (class->image, class->rank);
1663 sig->ret = &class->element_class->byval_arg;
1664 sig->pinvoke = TRUE;
1665 sig->hasthis = TRUE;
1666 for (i = 0; i < class->rank; ++i)
1667 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1668 amethod = create_array_method (class, "Get", sig);
1669 methods [method_num++] = amethod;
1670 /* element& Address (idx11, [idx2, ...]) */
1671 sig = mono_metadata_signature_alloc (class->image, class->rank);
1672 sig->ret = &class->element_class->this_arg;
1673 sig->pinvoke = TRUE;
1674 sig->hasthis = TRUE;
1675 for (i = 0; i < class->rank; ++i)
1676 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1677 amethod = create_array_method (class, "Address", sig);
1678 methods [method_num++] = amethod;
1679 /* void Set (idx11, [idx2, ...], element) */
1680 sig = mono_metadata_signature_alloc (class->image, class->rank + 1);
1681 sig->ret = &mono_defaults.void_class->byval_arg;
1682 sig->pinvoke = TRUE;
1683 sig->hasthis = TRUE;
1684 for (i = 0; i < class->rank; ++i)
1685 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1686 sig->params [i] = &class->element_class->byval_arg;
1687 amethod = create_array_method (class, "Set", sig);
1688 methods [method_num++] = amethod;
1690 for (i = 0; i < class->interface_count; i++)
1691 setup_generic_array_ifaces (class, class->interfaces [i], methods, first_generic + i * count_generic);
1693 methods = mono_image_alloc (class->image, sizeof (MonoMethod*) * class->method.count);
1694 for (i = 0; i < class->method.count; ++i) {
1695 int idx = mono_metadata_translate_token_index (class->image, MONO_TABLE_METHOD, class->method.first + i + 1);
1696 methods [i] = mono_get_method (class->image, MONO_TOKEN_METHOD_DEF | idx, class);
1700 if (MONO_CLASS_IS_INTERFACE (class))
1701 for (i = 0; i < class->method.count; ++i)
1702 methods [i]->slot = i;
1704 /* Needed because of the double-checking locking pattern */
1705 mono_memory_barrier ();
1707 class->methods = methods;
1709 if (mono_debugger_class_loaded_methods_func)
1710 mono_debugger_class_loaded_methods_func (class);
1712 mono_loader_unlock ();
1716 * mono_class_get_method_by_index:
1718 * Returns class->methods [index], initializing class->methods if neccesary.
1720 * LOCKING: Acquires the loader lock.
1723 mono_class_get_method_by_index (MonoClass *class, int index)
1725 /* Avoid calling setup_methods () if possible */
1726 if (class->generic_class && !class->methods) {
1727 MonoClass *gklass = class->generic_class->container_class;
1730 m = mono_class_inflate_generic_method_full (
1731 gklass->methods [index], class, mono_class_get_context (class));
1733 * If setup_methods () is called later for this class, no duplicates are created,
1734 * since inflate_generic_method guarantees that only one instance of a method
1735 * is created for each context.
1738 mono_class_setup_methods (class);
1739 g_assert (m == class->methods [index]);
1743 mono_class_setup_methods (class);
1744 g_assert (index >= 0 && index < class->method.count);
1745 return class->methods [index];
1750 * mono_class_get_inflated_method:
1752 * Given an inflated class CLASS and a method METHOD which should be a method of
1753 * CLASS's generic definition, return the inflated method corresponding to METHOD.
1756 mono_class_get_inflated_method (MonoClass *class, MonoMethod *method)
1758 MonoClass *gklass = class->generic_class->container_class;
1761 mono_class_setup_methods (gklass);
1762 for (i = 0; i < gklass->method.count; ++i) {
1763 if (gklass->methods [i] == method) {
1765 return class->methods [i];
1767 return mono_class_inflate_generic_method_full (gklass->methods [i], class, mono_class_get_context (class));
1775 * mono_class_get_vtable_entry:
1777 * Returns class->vtable [offset], computing it if neccesary.
1778 * LOCKING: Acquires the loader lock.
1781 mono_class_get_vtable_entry (MonoClass *class, int offset)
1785 if (class->rank == 1) {
1787 * szarrays do not overwrite any methods of Array, so we can avoid
1788 * initializing their vtables in some cases.
1790 mono_class_setup_vtable (class->parent);
1791 if (offset < class->parent->vtable_size)
1792 return class->parent->vtable [offset];
1795 if (class->generic_class) {
1796 MonoClass *gklass = class->generic_class->container_class;
1797 mono_class_setup_vtable (gklass);
1798 m = gklass->vtable [offset];
1800 m = mono_class_inflate_generic_method_full (m, class, mono_class_get_context (class));
1802 mono_class_setup_vtable (class);
1803 m = class->vtable [offset];
1810 * mono_class_get_vtable_size:
1812 * Return the vtable size for KLASS.
1815 mono_class_get_vtable_size (MonoClass *klass)
1817 mono_class_setup_vtable (klass);
1819 return klass->vtable_size;
1823 mono_class_setup_properties (MonoClass *class)
1825 guint startm, endm, i, j;
1826 guint32 cols [MONO_PROPERTY_SIZE];
1827 MonoTableInfo *msemt = &class->image->tables [MONO_TABLE_METHODSEMANTICS];
1828 MonoProperty *properties;
1831 if (class->ext && class->ext->properties)
1834 mono_loader_lock ();
1836 if (class->ext && class->ext->properties) {
1837 mono_loader_unlock ();
1841 mono_class_alloc_ext (class);
1843 if (class->generic_class) {
1844 MonoClass *gklass = class->generic_class->container_class;
1846 mono_class_init (gklass);
1847 mono_class_setup_properties (gklass);
1849 class->ext->property = gklass->ext->property;
1851 properties = g_new0 (MonoProperty, class->ext->property.count + 1);
1853 for (i = 0; i < class->ext->property.count; i++) {
1854 MonoProperty *prop = &properties [i];
1856 *prop = gklass->ext->properties [i];
1859 prop->get = mono_class_inflate_generic_method_full (
1860 prop->get, class, mono_class_get_context (class));
1862 prop->set = mono_class_inflate_generic_method_full (
1863 prop->set, class, mono_class_get_context (class));
1865 prop->parent = class;
1868 class->ext->property.first = mono_metadata_properties_from_typedef (class->image, mono_metadata_token_index (class->type_token) - 1, &last);
1869 class->ext->property.count = last - class->ext->property.first;
1871 if (class->ext->property.count)
1872 mono_class_setup_methods (class);
1874 properties = mono_image_alloc0 (class->image, sizeof (MonoProperty) * class->ext->property.count);
1875 for (i = class->ext->property.first; i < last; ++i) {
1876 mono_metadata_decode_table_row (class->image, MONO_TABLE_PROPERTY, i, cols, MONO_PROPERTY_SIZE);
1877 properties [i - class->ext->property.first].parent = class;
1878 properties [i - class->ext->property.first].attrs = cols [MONO_PROPERTY_FLAGS];
1879 properties [i - class->ext->property.first].name = mono_metadata_string_heap (class->image, cols [MONO_PROPERTY_NAME]);
1881 startm = mono_metadata_methods_from_property (class->image, i, &endm);
1882 for (j = startm; j < endm; ++j) {
1885 mono_metadata_decode_row (msemt, j, cols, MONO_METHOD_SEMA_SIZE);
1887 if (class->image->uncompressed_metadata)
1888 /* It seems like the MONO_METHOD_SEMA_METHOD column needs no remapping */
1889 method = mono_get_method (class->image, MONO_TOKEN_METHOD_DEF | cols [MONO_METHOD_SEMA_METHOD], class);
1891 method = class->methods [cols [MONO_METHOD_SEMA_METHOD] - 1 - class->method.first];
1893 switch (cols [MONO_METHOD_SEMA_SEMANTICS]) {
1894 case METHOD_SEMANTIC_SETTER:
1895 properties [i - class->ext->property.first].set = method;
1897 case METHOD_SEMANTIC_GETTER:
1898 properties [i - class->ext->property.first].get = method;
1906 /*Flush any pending writes as we do double checked locking on class->properties */
1907 mono_memory_barrier ();
1909 /* Leave this assignment as the last op in the function */
1910 class->ext->properties = properties;
1912 mono_loader_unlock ();
1916 inflate_method_listz (MonoMethod **methods, MonoClass *class, MonoGenericContext *context)
1918 MonoMethod **om, **retval;
1921 for (om = methods, count = 0; *om; ++om, ++count)
1924 retval = g_new0 (MonoMethod*, count + 1);
1926 for (om = methods, count = 0; *om; ++om, ++count)
1927 retval [count] = mono_class_inflate_generic_method_full (*om, class, context);
1933 mono_class_setup_events (MonoClass *class)
1935 guint startm, endm, i, j;
1936 guint32 cols [MONO_EVENT_SIZE];
1937 MonoTableInfo *msemt = &class->image->tables [MONO_TABLE_METHODSEMANTICS];
1941 if (class->ext && class->ext->events)
1944 mono_loader_lock ();
1946 if (class->ext && class->ext->events) {
1947 mono_loader_unlock ();
1951 mono_class_alloc_ext (class);
1953 if (class->generic_class) {
1954 MonoClass *gklass = class->generic_class->container_class;
1955 MonoGenericContext *context;
1957 mono_class_setup_events (gklass);
1958 class->ext->event = gklass->ext->event;
1960 class->ext->events = g_new0 (MonoEvent, class->ext->event.count);
1962 if (class->ext->event.count)
1963 context = mono_class_get_context (class);
1965 for (i = 0; i < class->ext->event.count; i++) {
1966 MonoEvent *event = &class->ext->events [i];
1967 MonoEvent *gevent = &gklass->ext->events [i];
1969 event->parent = class;
1970 event->name = gevent->name;
1971 event->add = gevent->add ? mono_class_inflate_generic_method_full (gevent->add, class, context) : NULL;
1972 event->remove = gevent->remove ? mono_class_inflate_generic_method_full (gevent->remove, class, context) : NULL;
1973 event->raise = gevent->raise ? mono_class_inflate_generic_method_full (gevent->raise, class, context) : NULL;
1974 event->other = gevent->other ? inflate_method_listz (gevent->other, class, context) : NULL;
1975 event->attrs = gevent->attrs;
1978 mono_loader_unlock ();
1982 class->ext->event.first = mono_metadata_events_from_typedef (class->image, mono_metadata_token_index (class->type_token) - 1, &last);
1983 class->ext->event.count = last - class->ext->event.first;
1985 if (class->ext->event.count)
1986 mono_class_setup_methods (class);
1988 events = mono_image_alloc0 (class->image, sizeof (MonoEvent) * class->ext->event.count);
1989 for (i = class->ext->event.first; i < last; ++i) {
1990 MonoEvent *event = &events [i - class->ext->event.first];
1992 mono_metadata_decode_table_row (class->image, MONO_TABLE_EVENT, i, cols, MONO_EVENT_SIZE);
1993 event->parent = class;
1994 event->attrs = cols [MONO_EVENT_FLAGS];
1995 event->name = mono_metadata_string_heap (class->image, cols [MONO_EVENT_NAME]);
1997 startm = mono_metadata_methods_from_event (class->image, i, &endm);
1998 for (j = startm; j < endm; ++j) {
2001 mono_metadata_decode_row (msemt, j, cols, MONO_METHOD_SEMA_SIZE);
2003 if (class->image->uncompressed_metadata)
2004 /* It seems like the MONO_METHOD_SEMA_METHOD column needs no remapping */
2005 method = mono_get_method (class->image, MONO_TOKEN_METHOD_DEF | cols [MONO_METHOD_SEMA_METHOD], class);
2007 method = class->methods [cols [MONO_METHOD_SEMA_METHOD] - 1 - class->method.first];
2009 switch (cols [MONO_METHOD_SEMA_SEMANTICS]) {
2010 case METHOD_SEMANTIC_ADD_ON:
2011 event->add = method;
2013 case METHOD_SEMANTIC_REMOVE_ON:
2014 event->remove = method;
2016 case METHOD_SEMANTIC_FIRE:
2017 event->raise = method;
2019 case METHOD_SEMANTIC_OTHER: {
2022 if (event->other == NULL) {
2023 event->other = g_new0 (MonoMethod*, 2);
2025 while (event->other [n])
2027 event->other = g_realloc (event->other, (n + 2) * sizeof (MonoMethod*));
2029 event->other [n] = method;
2030 /* NULL terminated */
2031 event->other [n + 1] = NULL;
2039 /*Flush any pending writes as we do double checked locking on class->properties */
2040 mono_memory_barrier ();
2042 /* Leave this assignment as the last op in the function */
2043 class->ext->events = events;
2045 mono_loader_unlock ();
2049 * Global pool of interface IDs, represented as a bitset.
2050 * LOCKING: this is supposed to be accessed with the loader lock held.
2052 static MonoBitSet *global_interface_bitset = NULL;
2055 * mono_unload_interface_ids:
2056 * @bitset: bit set of interface IDs
2058 * When an image is unloaded, the interface IDs associated with
2059 * the image are put back in the global pool of IDs so the numbers
2063 mono_unload_interface_ids (MonoBitSet *bitset)
2065 mono_loader_lock ();
2066 mono_bitset_sub (global_interface_bitset, bitset);
2067 mono_loader_unlock ();
2071 * mono_get_unique_iid:
2074 * Assign a unique integer ID to the interface represented by @class.
2075 * The ID will positive and as small as possible.
2076 * LOCKING: this is supposed to be called with the loader lock held.
2077 * Returns: the new ID.
2080 mono_get_unique_iid (MonoClass *class)
2084 g_assert (MONO_CLASS_IS_INTERFACE (class));
2086 if (!global_interface_bitset) {
2087 global_interface_bitset = mono_bitset_new (128, 0);
2090 iid = mono_bitset_find_first_unset (global_interface_bitset, -1);
2092 int old_size = mono_bitset_size (global_interface_bitset);
2093 MonoBitSet *new_set = mono_bitset_clone (global_interface_bitset, old_size * 2);
2094 mono_bitset_free (global_interface_bitset);
2095 global_interface_bitset = new_set;
2098 mono_bitset_set (global_interface_bitset, iid);
2099 /* set the bit also in the per-image set */
2100 if (class->image->interface_bitset) {
2101 if (iid >= mono_bitset_size (class->image->interface_bitset)) {
2102 MonoBitSet *new_set = mono_bitset_clone (class->image->interface_bitset, iid + 1);
2103 mono_bitset_free (class->image->interface_bitset);
2104 class->image->interface_bitset = new_set;
2107 class->image->interface_bitset = mono_bitset_new (iid + 1, 0);
2109 mono_bitset_set (class->image->interface_bitset, iid);
2111 if (mono_print_vtable) {
2113 char *type_name = mono_type_full_name (&class->byval_arg);
2114 if (class->generic_class && !class->generic_class->context.class_inst->is_open) {
2115 generic_id = class->generic_class->context.class_inst->id;
2116 g_assert (generic_id != 0);
2120 printf ("Interface: assigned id %d to %s|%s|%d\n", iid, class->image->name, type_name, generic_id);
2124 g_assert (iid <= 65535);
2129 collect_implemented_interfaces_aux (MonoClass *klass, GPtrArray **res)
2134 mono_class_setup_interfaces (klass);
2136 for (i = 0; i < klass->interface_count; i++) {
2137 ic = klass->interfaces [i];
2140 *res = g_ptr_array_new ();
2141 g_ptr_array_add (*res, ic);
2142 mono_class_init (ic);
2144 collect_implemented_interfaces_aux (ic, res);
2149 mono_class_get_implemented_interfaces (MonoClass *klass)
2151 GPtrArray *res = NULL;
2153 collect_implemented_interfaces_aux (klass, &res);
2158 compare_interface_ids (const void *p_key, const void *p_element) {
2159 const MonoClass *key = p_key;
2160 const MonoClass *element = *(MonoClass**) p_element;
2162 return (key->interface_id - element->interface_id);
2166 mono_class_interface_offset (MonoClass *klass, MonoClass *itf) {
2167 MonoClass **result = bsearch (
2169 klass->interfaces_packed,
2170 klass->interface_offsets_count,
2171 sizeof (MonoClass *),
2172 compare_interface_ids);
2174 return klass->interface_offsets_packed [result - (klass->interfaces_packed)];
2181 print_implemented_interfaces (MonoClass *klass) {
2182 GPtrArray *ifaces = NULL;
2184 int ancestor_level = 0;
2186 printf ("Packed interface table for class %s has size %d\n", klass->name, klass->interface_offsets_count);
2187 for (i = 0; i < klass->interface_offsets_count; i++)
2188 printf (" [%03d][UUID %03d][SLOT %03d][SIZE %03d] interface %s.%s\n", i,
2189 klass->interfaces_packed [i]->interface_id,
2190 klass->interface_offsets_packed [i],
2191 klass->interfaces_packed [i]->method.count,
2192 klass->interfaces_packed [i]->name_space,
2193 klass->interfaces_packed [i]->name );
2194 printf ("Interface flags: ");
2195 for (i = 0; i <= klass->max_interface_id; i++)
2196 if (MONO_CLASS_IMPLEMENTS_INTERFACE (klass, i))
2197 printf ("(%d,T)", i);
2199 printf ("(%d,F)", i);
2201 printf ("Dump interface flags:");
2202 for (i = 0; i < ((((klass->max_interface_id + 1) >> 3)) + (((klass->max_interface_id + 1) & 7)? 1 :0)); i++)
2203 printf (" %02X", klass->interface_bitmap [i]);
2205 while (klass != NULL) {
2206 printf ("[LEVEL %d] Implemented interfaces by class %s:\n", ancestor_level, klass->name);
2207 ifaces = mono_class_get_implemented_interfaces (klass);
2209 for (i = 0; i < ifaces->len; i++) {
2210 MonoClass *ic = g_ptr_array_index (ifaces, i);
2211 printf (" [UIID %d] interface %s\n", ic->interface_id, ic->name);
2212 printf (" [%03d][UUID %03d][SLOT %03d][SIZE %03d] interface %s.%s\n", i,
2214 mono_class_interface_offset (klass, ic),
2219 g_ptr_array_free (ifaces, TRUE);
2222 klass = klass->parent;
2227 inflate_class_one_arg (MonoClass *gtype, MonoClass *arg0)
2230 args [0] = &arg0->byval_arg;
2232 return mono_class_bind_generic_parameters (gtype, 1, args, FALSE);
2236 array_class_get_if_rank (MonoClass *class, guint rank)
2238 return rank ? mono_array_class_get (class, rank) : class;
2242 fill_valuetype_array_derived_types (MonoClass **valuetype_types, MonoClass *eclass, int rank)
2244 valuetype_types [0] = eclass;
2245 if (eclass == mono_defaults.int16_class)
2246 valuetype_types [1] = mono_defaults.uint16_class;
2247 else if (eclass == mono_defaults.uint16_class)
2248 valuetype_types [1] = mono_defaults.int16_class;
2249 else if (eclass == mono_defaults.int32_class)
2250 valuetype_types [1] = mono_defaults.uint32_class;
2251 else if (eclass == mono_defaults.uint32_class)
2252 valuetype_types [1] = mono_defaults.int32_class;
2253 else if (eclass == mono_defaults.int64_class)
2254 valuetype_types [1] = mono_defaults.uint64_class;
2255 else if (eclass == mono_defaults.uint64_class)
2256 valuetype_types [1] = mono_defaults.int64_class;
2257 else if (eclass == mono_defaults.byte_class)
2258 valuetype_types [1] = mono_defaults.sbyte_class;
2259 else if (eclass == mono_defaults.sbyte_class)
2260 valuetype_types [1] = mono_defaults.byte_class;
2261 else if (eclass->enumtype && mono_class_enum_basetype (eclass))
2262 valuetype_types [1] = mono_class_from_mono_type (mono_class_enum_basetype (eclass));
2265 /* this won't be needed once bug #325495 is completely fixed
2266 * though we'll need something similar to know which interfaces to allow
2267 * in arrays when they'll be lazyly created
2269 * FIXME: System.Array/InternalEnumerator don't need all this interface fabrication machinery.
2270 * MS returns diferrent types based on which instance is called. For example:
2271 * object obj = new byte[10][];
2272 * Type a = ((IEnumerable<byte[]>)obj).GetEnumerator ().GetType ();
2273 * Type b = ((IEnumerable<IList<byte>>)obj).GetEnumerator ().GetType ();
2276 * Fixing this should kill quite some code, save some bits and improve compatibility.
2279 get_implicit_generic_array_interfaces (MonoClass *class, int *num, int *is_enumerator)
2281 MonoClass *eclass = class->element_class;
2282 static MonoClass* generic_icollection_class = NULL;
2283 static MonoClass* generic_ienumerable_class = NULL;
2284 static MonoClass* generic_ienumerator_class = NULL;
2285 MonoClass *valuetype_types[2] = { NULL, NULL };
2286 MonoClass **interfaces = NULL;
2287 int i, interface_count, real_count, original_rank;
2289 gboolean internal_enumerator;
2290 gboolean eclass_is_valuetype;
2292 if (!mono_defaults.generic_ilist_class) {
2296 internal_enumerator = FALSE;
2297 eclass_is_valuetype = FALSE;
2298 original_rank = eclass->rank;
2299 if (class->byval_arg.type != MONO_TYPE_SZARRAY) {
2300 if (class->generic_class && class->nested_in == mono_defaults.array_class && strcmp (class->name, "InternalEnumerator`1") == 0) {
2302 * For a Enumerator<T[]> we need to get the list of interfaces for T.
2304 eclass = mono_class_from_mono_type (class->generic_class->context.class_inst->type_argv [0]);
2305 original_rank = eclass->rank;
2306 eclass = eclass->element_class;
2307 internal_enumerator = TRUE;
2308 *is_enumerator = TRUE;
2316 * with this non-lazy impl we can't implement all the interfaces so we do just the minimal stuff
2317 * for deep levels of arrays of arrays (string[][] has all the interfaces, string[][][] doesn't)
2319 all_interfaces = eclass->rank && eclass->element_class->rank? FALSE: TRUE;
2321 if (!generic_icollection_class) {
2322 generic_icollection_class = mono_class_from_name (mono_defaults.corlib,
2323 "System.Collections.Generic", "ICollection`1");
2324 generic_ienumerable_class = mono_class_from_name (mono_defaults.corlib,
2325 "System.Collections.Generic", "IEnumerable`1");
2326 generic_ienumerator_class = mono_class_from_name (mono_defaults.corlib,
2327 "System.Collections.Generic", "IEnumerator`1");
2330 mono_class_init (eclass);
2333 * Arrays in 2.0 need to implement a number of generic interfaces
2334 * (IList`1, ICollection`1, IEnumerable`1 for a number of types depending
2335 * on the element class). We collect the types needed to build the
2336 * instantiations in interfaces at intervals of 3, because 3 are
2337 * the generic interfaces needed to implement.
2339 if (eclass->valuetype) {
2340 fill_valuetype_array_derived_types (valuetype_types, eclass, original_rank);
2342 /* IList, ICollection, IEnumerable */
2343 real_count = interface_count = valuetype_types [1] ? 6 : 3;
2344 if (internal_enumerator) {
2346 if (valuetype_types [1])
2350 interfaces = g_malloc0 (sizeof (MonoClass*) * real_count);
2351 interfaces [0] = valuetype_types [0];
2352 if (valuetype_types [1])
2353 interfaces [3] = valuetype_types [1];
2355 eclass_is_valuetype = TRUE;
2358 int idepth = eclass->idepth;
2359 if (!internal_enumerator)
2361 interface_count = all_interfaces? eclass->interface_offsets_count: eclass->interface_count;
2362 /* we add object for interfaces and the supertypes for the other
2363 * types. The last of the supertypes is the element class itself which we
2364 * already created the explicit interfaces for (so we include it for IEnumerator
2365 * and exclude it for arrays).
2367 if (MONO_CLASS_IS_INTERFACE (eclass))
2370 interface_count += idepth;
2371 if (eclass->rank && eclass->element_class->valuetype) {
2372 fill_valuetype_array_derived_types (valuetype_types, eclass->element_class, original_rank);
2373 if (valuetype_types [1])
2376 /* IList, ICollection, IEnumerable */
2377 interface_count *= 3;
2378 real_count = interface_count;
2379 if (internal_enumerator) {
2380 real_count += (MONO_CLASS_IS_INTERFACE (eclass) ? 1 : idepth) + eclass->interface_offsets_count;
2381 if (valuetype_types [1])
2384 interfaces = g_malloc0 (sizeof (MonoClass*) * real_count);
2385 if (MONO_CLASS_IS_INTERFACE (eclass)) {
2386 interfaces [0] = mono_defaults.object_class;
2390 for (i = 0; i < idepth; i++) {
2391 mono_class_init (eclass->supertypes [i]);
2392 interfaces [j] = eclass->supertypes [i];
2396 if (all_interfaces) {
2397 for (i = 0; i < eclass->interface_offsets_count; i++) {
2398 interfaces [j] = eclass->interfaces_packed [i];
2402 for (i = 0; i < eclass->interface_count; i++) {
2403 interfaces [j] = eclass->interfaces [i];
2407 if (valuetype_types [1]) {
2408 interfaces [j] = array_class_get_if_rank (valuetype_types [1], original_rank);
2413 /* instantiate the generic interfaces */
2414 for (i = 0; i < interface_count; i += 3) {
2415 MonoClass *iface = interfaces [i];
2417 interfaces [i + 0] = inflate_class_one_arg (mono_defaults.generic_ilist_class, iface);
2418 interfaces [i + 1] = inflate_class_one_arg (generic_icollection_class, iface);
2419 interfaces [i + 2] = inflate_class_one_arg (generic_ienumerable_class, iface);
2421 if (internal_enumerator) {
2423 /* instantiate IEnumerator<iface> */
2424 for (i = 0; i < interface_count; i++) {
2425 interfaces [i] = inflate_class_one_arg (generic_ienumerator_class, interfaces [i]);
2427 j = interface_count;
2428 if (!eclass_is_valuetype) {
2429 if (MONO_CLASS_IS_INTERFACE (eclass)) {
2430 interfaces [j] = inflate_class_one_arg (generic_ienumerator_class, mono_defaults.object_class);
2433 for (i = 0; i < eclass->idepth; i++) {
2434 interfaces [j] = inflate_class_one_arg (generic_ienumerator_class, eclass->supertypes [i]);
2438 for (i = 0; i < eclass->interface_offsets_count; i++) {
2439 interfaces [j] = inflate_class_one_arg (generic_ienumerator_class, eclass->interfaces_packed [i]);
2443 interfaces [j++] = inflate_class_one_arg (generic_ienumerator_class, array_class_get_if_rank (valuetype_types [0], original_rank));
2445 if (valuetype_types [1])
2446 interfaces [j] = inflate_class_one_arg (generic_ienumerator_class, array_class_get_if_rank (valuetype_types [1], original_rank));
2450 char *type_name = mono_type_get_name_full (&class->byval_arg, 0);
2451 for (i = 0; i < real_count; ++i) {
2452 char *name = mono_type_get_name_full (&interfaces [i]->byval_arg, 0);
2453 g_print ("%s implements %s\n", type_name, name);
2464 find_array_interface (MonoClass *klass, const char *name)
2467 for (i = 0; i < klass->interface_count; ++i) {
2468 if (strcmp (klass->interfaces [i]->name, name) == 0)
2475 * Return the number of virtual methods.
2476 * Even for interfaces we can't simply return the number of methods as all CLR types are allowed to have static methods.
2477 * FIXME It would be nice if this information could be cached somewhere.
2480 count_virtual_methods (MonoClass *class)
2484 class = mono_class_get_generic_type_definition (class); /*We can find this information by looking at the GTD*/
2486 if (class->methods || !MONO_CLASS_HAS_STATIC_METADATA (class)) {
2487 mono_class_setup_methods (class);
2489 for (i = 0; i < class->method.count; ++i) {
2490 flags = class->methods [i]->flags;
2491 if (flags & METHOD_ATTRIBUTE_VIRTUAL)
2495 for (i = 0; i < class->method.count; ++i) {
2496 flags = mono_metadata_decode_table_row_col (class->image, MONO_TABLE_METHOD, class->method.first + i, MONO_METHOD_FLAGS);
2498 if (flags & METHOD_ATTRIBUTE_VIRTUAL)
2506 * LOCKING: this is supposed to be called with the loader lock held.
2509 setup_interface_offsets (MonoClass *class, int cur_slot)
2513 MonoClass **interfaces_full;
2514 int *interface_offsets_full;
2516 int interface_offsets_count;
2517 MonoClass **array_interfaces;
2518 int num_array_interfaces;
2519 int is_enumerator = FALSE;
2522 * get the implicit generic interfaces for either the arrays or for System.Array/InternalEnumerator<T>
2523 * implicit interfaces have the property that they are assigned the same slot in the
2524 * vtables for compatible interfaces
2526 array_interfaces = get_implicit_generic_array_interfaces (class, &num_array_interfaces, &is_enumerator);
2528 /* compute maximum number of slots and maximum interface id */
2530 for (k = class; k ; k = k->parent) {
2531 for (i = 0; i < k->interface_count; i++) {
2532 ic = k->interfaces [i];
2535 mono_class_init (ic);
2537 if (max_iid < ic->interface_id)
2538 max_iid = ic->interface_id;
2540 ifaces = mono_class_get_implemented_interfaces (k);
2542 for (i = 0; i < ifaces->len; ++i) {
2543 ic = g_ptr_array_index (ifaces, i);
2544 if (max_iid < ic->interface_id)
2545 max_iid = ic->interface_id;
2547 g_ptr_array_free (ifaces, TRUE);
2550 for (i = 0; i < num_array_interfaces; ++i) {
2551 ic = array_interfaces [i];
2552 mono_class_init (ic);
2553 if (max_iid < ic->interface_id)
2554 max_iid = ic->interface_id;
2557 if (MONO_CLASS_IS_INTERFACE (class)) {
2558 if (max_iid < class->interface_id)
2559 max_iid = class->interface_id;
2561 class->max_interface_id = max_iid;
2562 /* compute vtable offset for interfaces */
2563 interfaces_full = g_malloc (sizeof (MonoClass*) * (max_iid + 1));
2564 interface_offsets_full = g_malloc (sizeof (int) * (max_iid + 1));
2566 for (i = 0; i <= max_iid; i++) {
2567 interfaces_full [i] = NULL;
2568 interface_offsets_full [i] = -1;
2571 ifaces = mono_class_get_implemented_interfaces (class);
2573 for (i = 0; i < ifaces->len; ++i) {
2574 ic = g_ptr_array_index (ifaces, i);
2575 if (interfaces_full [ic->interface_id] != NULL)
2577 interfaces_full [ic->interface_id] = ic;
2578 interface_offsets_full [ic->interface_id] = cur_slot;
2579 cur_slot += count_virtual_methods (ic);
2581 g_ptr_array_free (ifaces, TRUE);
2584 for (k = class->parent; k ; k = k->parent) {
2585 ifaces = mono_class_get_implemented_interfaces (k);
2587 for (i = 0; i < ifaces->len; ++i) {
2588 ic = g_ptr_array_index (ifaces, i);
2590 if (interface_offsets_full [ic->interface_id] == -1) {
2591 int io = mono_class_interface_offset (k, ic);
2595 interfaces_full [ic->interface_id] = ic;
2596 interface_offsets_full [ic->interface_id] = io;
2599 g_ptr_array_free (ifaces, TRUE);
2603 if (MONO_CLASS_IS_INTERFACE (class)) {
2604 interfaces_full [class->interface_id] = class;
2605 interface_offsets_full [class->interface_id] = cur_slot;
2608 if (num_array_interfaces) {
2609 if (is_enumerator) {
2610 int ienumerator_offset;
2611 int ienumerator_idx = find_array_interface (class, "IEnumerator`1");
2612 ienumerator_offset = interface_offsets_full [class->interfaces [ienumerator_idx]->interface_id];
2613 for (i = 0; i < num_array_interfaces; ++i) {
2614 ic = array_interfaces [i];
2615 interfaces_full [ic->interface_id] = ic;
2616 if (strcmp (ic->name, "IEnumerator`1") == 0)
2617 interface_offsets_full [ic->interface_id] = ienumerator_offset;
2619 g_assert_not_reached ();
2620 /*g_print ("type %s has %s offset at %d (%s)\n", class->name, ic->name, interface_offsets_full [ic->interface_id], class->interfaces [0]->name);*/
2623 int ilist_offset, icollection_offset, ienumerable_offset;
2624 int ilist_iface_idx = find_array_interface (class, "IList`1");
2625 int icollection_iface_idx = find_array_interface (class->interfaces [ilist_iface_idx], "ICollection`1");
2626 int ienumerable_iface_idx = find_array_interface (class->interfaces [ilist_iface_idx], "IEnumerable`1");
2627 ilist_offset = interface_offsets_full [class->interfaces [ilist_iface_idx]->interface_id];
2628 icollection_offset = interface_offsets_full [class->interfaces [ilist_iface_idx]->interfaces [icollection_iface_idx]->interface_id];
2629 ienumerable_offset = interface_offsets_full [class->interfaces [ilist_iface_idx]->interfaces [ienumerable_iface_idx]->interface_id];
2630 g_assert (ilist_offset >= 0 && icollection_offset >= 0 && ienumerable_offset >= 0);
2631 for (i = 0; i < num_array_interfaces; ++i) {
2632 ic = array_interfaces [i];
2633 interfaces_full [ic->interface_id] = ic;
2634 if (ic->generic_class->container_class == mono_defaults.generic_ilist_class)
2635 interface_offsets_full [ic->interface_id] = ilist_offset;
2636 else if (strcmp (ic->name, "ICollection`1") == 0)
2637 interface_offsets_full [ic->interface_id] = icollection_offset;
2638 else if (strcmp (ic->name, "IEnumerable`1") == 0)
2639 interface_offsets_full [ic->interface_id] = ienumerable_offset;
2641 g_assert_not_reached ();
2642 /*g_print ("type %s has %s offset at %d (%s)\n", class->name, ic->name, interface_offsets_full [ic->interface_id], class->interfaces [0]->name);*/
2647 for (interface_offsets_count = 0, i = 0; i <= max_iid; i++) {
2648 if (interface_offsets_full [i] != -1) {
2649 interface_offsets_count ++;
2654 * We might get called twice: once from mono_class_init () then once from
2655 * mono_class_setup_vtable ().
2657 if (class->interfaces_packed) {
2658 g_assert (class->interface_offsets_count == interface_offsets_count);
2660 class->interface_offsets_count = interface_offsets_count;
2661 class->interfaces_packed = mono_image_alloc (class->image, sizeof (MonoClass*) * interface_offsets_count);
2662 class->interface_offsets_packed = mono_image_alloc (class->image, sizeof (guint16) * interface_offsets_count);
2663 class->interface_bitmap = mono_image_alloc0 (class->image, (sizeof (guint8) * ((max_iid + 1) >> 3)) + (((max_iid + 1) & 7)? 1 :0));
2664 for (interface_offsets_count = 0, i = 0; i <= max_iid; i++) {
2665 if (interface_offsets_full [i] != -1) {
2666 class->interface_bitmap [i >> 3] |= (1 << (i & 7));
2667 class->interfaces_packed [interface_offsets_count] = interfaces_full [i];
2668 class->interface_offsets_packed [interface_offsets_count] = interface_offsets_full [i];
2669 /*if (num_array_interfaces)
2670 g_print ("type %s has %s offset at %d\n", mono_type_get_name_full (&class->byval_arg, 0), mono_type_get_name_full (&interfaces_full [i]->byval_arg, 0), interface_offsets_full [i]);*/
2671 interface_offsets_count ++;
2676 g_free (interfaces_full);
2677 g_free (interface_offsets_full);
2678 g_free (array_interfaces);
2680 //printf ("JUST DONE: ");
2681 //print_implemented_interfaces (class);
2687 * Setup interface offsets for interfaces.
2689 * - class->max_interface_id
2690 * - class->interface_offsets_count
2691 * - class->interfaces_packed
2692 * - class->interface_offsets_packed
2693 * - class->interface_bitmap
2696 mono_class_setup_interface_offsets (MonoClass *class)
2698 mono_loader_lock ();
2700 setup_interface_offsets (class, 0);
2702 mono_loader_unlock ();
2706 * mono_class_setup_vtable:
2708 * Creates the generic vtable of CLASS.
2709 * Initializes the following fields in MonoClass:
2712 * Plus all the fields initialized by setup_interface_offsets ().
2713 * If there is an error during vtable construction, class->exception_type is set.
2715 * LOCKING: Acquires the loader lock.
2718 mono_class_setup_vtable (MonoClass *class)
2720 MonoMethod **overrides;
2721 MonoGenericContext *context;
2730 if (mono_debug_using_mono_debugger ())
2731 /* The debugger currently depends on this */
2732 mono_class_setup_methods (class);
2734 if (MONO_CLASS_IS_INTERFACE (class)) {
2735 /* This sets method->slot for all methods if this is an interface */
2736 mono_class_setup_methods (class);
2740 mono_loader_lock ();
2742 if (class->vtable) {
2743 mono_loader_unlock ();
2747 mono_stats.generic_vtable_count ++;
2749 if (class->generic_class) {
2750 context = mono_class_get_context (class);
2751 type_token = class->generic_class->container_class->type_token;
2753 context = (MonoGenericContext *) class->generic_container;
2754 type_token = class->type_token;
2757 if (class->image->dynamic) {
2758 if (class->generic_class) {
2759 MonoClass *gklass = class->generic_class->container_class;
2761 mono_reflection_get_dynamic_overrides (gklass, &overrides, &onum);
2762 for (i = 0; i < onum; ++i) {
2763 MonoMethod *override = overrides [(i * 2) + 1];
2764 MonoMethod *inflated = NULL;
2767 for (j = 0; j < class->method.count; ++j) {
2768 if (gklass->methods [j] == override) {
2769 inflated = class->methods [j];
2773 g_assert (inflated);
2775 overrides [(i * 2) + 1] = inflated;
2778 mono_reflection_get_dynamic_overrides (class, &overrides, &onum);
2781 /* The following call fails if there are missing methods in the type */
2782 ok = mono_class_get_overrides_full (class->image, type_token, &overrides, &onum, context);
2786 mono_class_setup_vtable_general (class, overrides, onum);
2790 mono_loader_unlock ();
2795 #define DEBUG_INTERFACE_VTABLE_CODE 0
2796 #define TRACE_INTERFACE_VTABLE_CODE 0
2797 #define VERIFY_INTERFACE_VTABLE_CODE 0
2799 #if (TRACE_INTERFACE_VTABLE_CODE|DEBUG_INTERFACE_VTABLE_CODE)
2800 #define DEBUG_INTERFACE_VTABLE(stmt) do {\
2804 #define DEBUG_INTERFACE_VTABLE(stmt)
2807 #if TRACE_INTERFACE_VTABLE_CODE
2808 #define TRACE_INTERFACE_VTABLE(stmt) do {\
2812 #define TRACE_INTERFACE_VTABLE(stmt)
2815 #if VERIFY_INTERFACE_VTABLE_CODE
2816 #define VERIFY_INTERFACE_VTABLE(stmt) do {\
2820 #define VERIFY_INTERFACE_VTABLE(stmt)
2824 #if (TRACE_INTERFACE_VTABLE_CODE|DEBUG_INTERFACE_VTABLE_CODE)
2826 mono_signature_get_full_desc (MonoMethodSignature *sig, gboolean include_namespace)
2830 GString *res = g_string_new ("");
2832 g_string_append_c (res, '(');
2833 for (i = 0; i < sig->param_count; ++i) {
2835 g_string_append_c (res, ',');
2836 mono_type_get_desc (res, sig->params [i], include_namespace);
2838 g_string_append (res, ")=>");
2839 if (sig->ret != NULL) {
2840 mono_type_get_desc (res, sig->ret, include_namespace);
2842 g_string_append (res, "NULL");
2845 g_string_free (res, FALSE);
2849 print_method_signatures (MonoMethod *im, MonoMethod *cm) {
2850 char *im_sig = mono_signature_get_full_desc (mono_method_signature (im), TRUE);
2851 char *cm_sig = mono_signature_get_full_desc (mono_method_signature (cm), TRUE);
2852 printf ("(IM \"%s\", CM \"%s\")", im_sig, cm_sig);
2860 check_interface_method_override (MonoClass *class, MonoMethod *im, MonoMethod *cm, gboolean require_newslot, gboolean interface_is_explicitly_implemented_by_class, gboolean slot_is_empty, gboolean security_enabled) {
2861 if (strcmp (im->name, cm->name) == 0) {
2862 if (! (cm->flags & METHOD_ATTRIBUTE_PUBLIC)) {
2863 TRACE_INTERFACE_VTABLE (printf ("[PUBLIC CHECK FAILED]"));
2866 if (! slot_is_empty) {
2867 if (require_newslot) {
2868 if (! interface_is_explicitly_implemented_by_class) {
2869 TRACE_INTERFACE_VTABLE (printf ("[NOT EXPLICIT IMPLEMENTATION IN FULL SLOT REFUSED]"));
2872 if (! (cm->flags & METHOD_ATTRIBUTE_NEW_SLOT)) {
2873 TRACE_INTERFACE_VTABLE (printf ("[NEWSLOT CHECK FAILED]"));
2877 TRACE_INTERFACE_VTABLE (printf ("[FULL SLOT REFUSED]"));
2880 if (! mono_metadata_signature_equal (mono_method_signature (cm), mono_method_signature (im))) {
2881 TRACE_INTERFACE_VTABLE (printf ("[SIGNATURE CHECK FAILED "));
2882 TRACE_INTERFACE_VTABLE (print_method_signatures (im, cm));
2883 TRACE_INTERFACE_VTABLE (printf ("]"));
2886 TRACE_INTERFACE_VTABLE (printf ("[SECURITY CHECKS]"));
2887 /* CAS - SecurityAction.InheritanceDemand on interface */
2888 if (security_enabled && (im->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
2889 mono_secman_inheritancedemand_method (cm, im);
2892 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
2893 mono_security_core_clr_check_override (class, cm, im);
2894 TRACE_INTERFACE_VTABLE (printf ("[NAME CHECK OK]"));
2897 MonoClass *ic = im->klass;
2898 const char *ic_name_space = ic->name_space;
2899 const char *ic_name = ic->name;
2902 if (! require_newslot) {
2903 TRACE_INTERFACE_VTABLE (printf ("[INJECTED METHOD REFUSED]"));
2906 if (cm->klass->rank == 0) {
2907 TRACE_INTERFACE_VTABLE (printf ("[RANK CHECK FAILED]"));
2910 if (! mono_metadata_signature_equal (mono_method_signature (cm), mono_method_signature (im))) {
2911 TRACE_INTERFACE_VTABLE (printf ("[(INJECTED) SIGNATURE CHECK FAILED "));
2912 TRACE_INTERFACE_VTABLE (print_method_signatures (im, cm));
2913 TRACE_INTERFACE_VTABLE (printf ("]"));
2916 if (mono_class_get_image (ic) != mono_defaults.corlib) {
2917 TRACE_INTERFACE_VTABLE (printf ("[INTERFACE CORLIB CHECK FAILED]"));
2920 if ((ic_name_space == NULL) || (strcmp (ic_name_space, "System.Collections.Generic") != 0)) {
2921 TRACE_INTERFACE_VTABLE (printf ("[INTERFACE NAMESPACE CHECK FAILED]"));
2924 if ((ic_name == NULL) || ((strcmp (ic_name, "IEnumerable`1") != 0) && (strcmp (ic_name, "ICollection`1") != 0) && (strcmp (ic_name, "IList`1") != 0))) {
2925 TRACE_INTERFACE_VTABLE (printf ("[INTERFACE NAME CHECK FAILED]"));
2929 subname = strstr (cm->name, ic_name_space);
2930 if (subname != cm->name) {
2931 TRACE_INTERFACE_VTABLE (printf ("[ACTUAL NAMESPACE CHECK FAILED]"));
2934 subname += strlen (ic_name_space);
2935 if (subname [0] != '.') {
2936 TRACE_INTERFACE_VTABLE (printf ("[FIRST DOT CHECK FAILED]"));
2940 if (strstr (subname, ic_name) != subname) {
2941 TRACE_INTERFACE_VTABLE (printf ("[ACTUAL CLASS NAME CHECK FAILED]"));
2944 subname += strlen (ic_name);
2945 if (subname [0] != '.') {
2946 TRACE_INTERFACE_VTABLE (printf ("[SECOND DOT CHECK FAILED]"));
2950 if (strcmp (subname, im->name) != 0) {
2951 TRACE_INTERFACE_VTABLE (printf ("[METHOD NAME CHECK FAILED]"));
2955 TRACE_INTERFACE_VTABLE (printf ("[SECURITY CHECKS (INJECTED CASE)]"));
2956 /* CAS - SecurityAction.InheritanceDemand on interface */
2957 if (security_enabled && (im->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
2958 mono_secman_inheritancedemand_method (cm, im);
2961 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
2962 mono_security_core_clr_check_override (class, cm, im);
2964 TRACE_INTERFACE_VTABLE (printf ("[INJECTED INTERFACE CHECK OK]"));
2969 #if (TRACE_INTERFACE_VTABLE_CODE|DEBUG_INTERFACE_VTABLE_CODE)
2971 foreach_override (gpointer key, gpointer value, gpointer user_data) {
2972 MonoMethod *method = key;
2973 MonoMethod *override = value;
2974 MonoClass *method_class = mono_method_get_class (method);
2975 MonoClass *override_class = mono_method_get_class (override);
2977 printf (" Method '%s.%s:%s' has override '%s.%s:%s'\n",
2978 mono_class_get_namespace (method_class), mono_class_get_name (method_class), mono_method_get_name (method),
2979 mono_class_get_namespace (override_class), mono_class_get_name (override_class), mono_method_get_name (override));
2982 print_overrides (GHashTable *override_map, const char *message) {
2984 printf ("Override map \"%s\" START:\n", message);
2985 g_hash_table_foreach (override_map, foreach_override, NULL);
2986 printf ("Override map \"%s\" END.\n", message);
2988 printf ("Override map \"%s\" EMPTY.\n", message);
2992 print_vtable_full (MonoClass *class, MonoMethod** vtable, int size, int first_non_interface_slot, const char *message, gboolean print_interfaces) {
2993 char *full_name = mono_type_full_name (&class->byval_arg);
2997 printf ("*** Vtable for class '%s' at \"%s\" (size %d)\n", full_name, message, size);
2999 if (print_interfaces) {
3000 print_implemented_interfaces (class);
3001 printf ("* Interfaces for class '%s' done.\nStarting vtable (size %d):\n", full_name, size);
3004 if (class->parent) {
3005 parent_size = class->parent->vtable_size;
3009 for (i = 0; i < size; ++i) {
3010 MonoMethod *cm = vtable [i];
3012 char *cm_name = mono_method_full_name (cm, TRUE);
3013 char newness = (i < parent_size) ? 'O' : ((i < first_non_interface_slot) ? 'I' : 'N');
3014 printf (" [%c][%03d][INDEX %03d] %s\n", newness, i, cm->slot, cm_name);
3023 #if VERIFY_INTERFACE_VTABLE_CODE
3025 mono_method_try_get_vtable_index (MonoMethod *method)
3027 if (method->is_inflated && (method->flags & METHOD_ATTRIBUTE_VIRTUAL)) {
3028 MonoMethodInflated *imethod = (MonoMethodInflated*)method;
3029 if (imethod->declaring->is_generic)
3030 return imethod->declaring->slot;
3032 return method->slot;
3036 mono_class_verify_vtable (MonoClass *class)
3039 char *full_name = mono_type_full_name (&class->byval_arg);
3041 printf ("*** Verifying VTable of class '%s' \n", full_name);
3045 if (!class->methods)
3048 for (i = 0; i < class->method.count; ++i) {
3049 MonoMethod *cm = class->methods [i];
3052 if (!(cm->flags & METHOD_ATTRIBUTE_VIRTUAL))
3056 full_name = mono_method_full_name (cm, TRUE);
3058 slot = mono_method_try_get_vtable_index (cm);
3060 if (slot >= class->vtable_size) {
3061 printf ("\tInvalid method %s at index %d with vtable of length %d\n", full_name, slot, class->vtable_size);
3065 if (slot >= 0 && class->vtable [slot] != cm && (class->vtable [slot])) {
3066 char *other_name = class->vtable [slot] ? mono_method_full_name (class->vtable [slot], TRUE) : g_strdup ("[null value]");
3067 printf ("\tMethod %s has slot %d but vtable has %s on it\n", full_name, slot, other_name);
3068 g_free (other_name);
3071 printf ("\tVirtual method %s does n't have an assigned slot\n", full_name);
3078 print_unimplemented_interface_method_info (MonoClass *class, MonoClass *ic, MonoMethod *im, int im_slot, MonoMethod **overrides, int onum) {
3080 char *method_signature;
3083 for (index = 0; index < onum; ++index) {
3084 g_print (" at slot %d: %s (%d) overrides %s (%d)\n", im_slot, overrides [index*2+1]->name,
3085 overrides [index*2+1]->slot, overrides [index*2]->name, overrides [index*2]->slot);
3087 method_signature = mono_signature_get_desc (mono_method_signature (im), FALSE);
3088 type_name = mono_type_full_name (&class->byval_arg);
3089 printf ("no implementation for interface method %s::%s(%s) in class %s\n",
3090 mono_type_get_name (&ic->byval_arg), im->name, method_signature, type_name);
3091 g_free (method_signature);
3093 mono_class_setup_methods (class);
3094 for (index = 0; index < class->method.count; ++index) {
3095 MonoMethod *cm = class->methods [index];
3096 method_signature = mono_signature_get_desc (mono_method_signature (cm), TRUE);
3098 printf ("METHOD %s(%s)\n", cm->name, method_signature);
3099 g_free (method_signature);
3104 verify_class_overrides (MonoClass *class, GPtrArray *ifaces, MonoMethod **overrides, int onum)
3109 for (i = 0; i < onum; ++i) {
3110 MonoMethod *decl = overrides [i * 2];
3111 MonoMethod *body = overrides [i * 2 + 1];
3113 if (mono_class_get_generic_type_definition (body->klass) != mono_class_get_generic_type_definition (class)) {
3114 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Method belongs to a different class than the declared one"));
3118 if (!(body->flags & METHOD_ATTRIBUTE_VIRTUAL) || (body->flags & METHOD_ATTRIBUTE_STATIC)) {
3119 if (body->flags & METHOD_ATTRIBUTE_STATIC)
3120 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Method must not be static to override a base type"));
3122 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Method must be virtual to override a base type"));
3126 if (!(decl->flags & METHOD_ATTRIBUTE_VIRTUAL) || (decl->flags & METHOD_ATTRIBUTE_STATIC)) {
3127 if (body->flags & METHOD_ATTRIBUTE_STATIC)
3128 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Cannot override a static method in a base type"));
3130 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Cannot override a non virtual method in a base type"));
3135 /*We can't use mono_class_is_assignable_from since it requires the class to be fully initialized*/
3138 for (j = 0; j < ifaces->len; j++) {
3139 MonoClass *ic = g_ptr_array_index (ifaces, j);
3140 if (decl->klass == ic) {
3148 MonoClass *parent = class;
3150 if (decl->klass == parent) {
3154 parent = parent->parent;
3159 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Method overrides a class or interface that extended or implemented by this type"));
3166 * LOCKING: this is supposed to be called with the loader lock held.
3169 mono_class_setup_vtable_general (MonoClass *class, MonoMethod **overrides, int onum)
3172 MonoMethod **vtable;
3173 int i, max_vtsize = 0, max_iid, cur_slot = 0;
3174 GPtrArray *ifaces = NULL;
3175 GHashTable *override_map = NULL;
3176 gboolean security_enabled = mono_is_security_manager_active ();
3178 gpointer class_iter;
3179 #if (DEBUG_INTERFACE_VTABLE_CODE|TRACE_INTERFACE_VTABLE_CODE)
3180 int first_non_interface_slot;
3186 ifaces = mono_class_get_implemented_interfaces (class);
3188 if (overrides && !verify_class_overrides (class, ifaces, overrides, onum)) {
3190 g_ptr_array_free (ifaces, TRUE);
3195 for (i = 0; i < ifaces->len; i++) {
3196 MonoClass *ic = g_ptr_array_index (ifaces, i);
3197 max_vtsize += ic->method.count;
3199 g_ptr_array_free (ifaces, TRUE);
3203 if (class->parent) {
3204 mono_class_init (class->parent);
3205 mono_class_setup_vtable (class->parent);
3206 max_vtsize += class->parent->vtable_size;
3207 cur_slot = class->parent->vtable_size;
3210 max_vtsize += class->method.count;
3212 vtable = alloca (sizeof (gpointer) * max_vtsize);
3213 memset (vtable, 0, sizeof (gpointer) * max_vtsize);
3215 /* printf ("METAINIT %s.%s\n", class->name_space, class->name); */
3217 cur_slot = setup_interface_offsets (class, cur_slot);
3218 max_iid = class->max_interface_id;
3219 DEBUG_INTERFACE_VTABLE (first_non_interface_slot = cur_slot);
3221 /* Optimized version for generic instances */
3222 if (class->generic_class) {
3223 MonoClass *gklass = class->generic_class->container_class;
3226 mono_class_setup_vtable (gklass);
3227 if (gklass->exception_type != MONO_EXCEPTION_NONE) {
3228 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
3232 tmp = mono_image_alloc0 (class->image, sizeof (gpointer) * gklass->vtable_size);
3233 class->vtable_size = gklass->vtable_size;
3234 for (i = 0; i < gklass->vtable_size; ++i)
3235 if (gklass->vtable [i]) {
3236 tmp [i] = mono_class_inflate_generic_method_full (gklass->vtable [i], class, mono_class_get_context (class));
3237 tmp [i]->slot = gklass->vtable [i]->slot;
3239 mono_memory_barrier ();
3240 class->vtable = tmp;
3242 /* Have to set method->slot for abstract virtual methods */
3243 if (class->methods && gklass->methods) {
3244 for (i = 0; i < class->method.count; ++i)
3245 if (class->methods [i]->slot == -1)
3246 class->methods [i]->slot = gklass->methods [i]->slot;
3252 if (class->parent && class->parent->vtable_size) {
3253 MonoClass *parent = class->parent;
3256 memcpy (vtable, parent->vtable, sizeof (gpointer) * parent->vtable_size);
3258 // Also inherit parent interface vtables, just as a starting point.
3259 // This is needed otherwise bug-77127.exe fails when the property methods
3260 // have different names in the iterface and the class, because for child
3261 // classes the ".override" information is not used anymore.
3262 for (i = 0; i < parent->interface_offsets_count; i++) {
3263 MonoClass *parent_interface = parent->interfaces_packed [i];
3264 int interface_offset = mono_class_interface_offset (class, parent_interface);
3266 if (interface_offset >= parent->vtable_size) {
3267 int parent_interface_offset = mono_class_interface_offset (parent, parent_interface);
3270 mono_class_setup_methods (parent_interface);
3271 TRACE_INTERFACE_VTABLE (printf (" +++ Inheriting interface %s.%s\n", parent_interface->name_space, parent_interface->name));
3272 for (j = 0; j < parent_interface->method.count; j++) {
3273 vtable [interface_offset + j] = parent->vtable [parent_interface_offset + j];
3274 TRACE_INTERFACE_VTABLE (printf (" --- Inheriting: [%03d][(%03d)+(%03d)] => [%03d][(%03d)+(%03d)]\n",
3275 parent_interface_offset + j, parent_interface_offset, j,
3276 interface_offset + j, interface_offset, j));
3283 TRACE_INTERFACE_VTABLE (print_vtable_full (class, vtable, cur_slot, first_non_interface_slot, "AFTER INHERITING PARENT VTABLE", TRUE));
3284 /* override interface methods */
3285 for (i = 0; i < onum; i++) {
3286 MonoMethod *decl = overrides [i*2];
3287 if (MONO_CLASS_IS_INTERFACE (decl->klass)) {
3289 dslot = mono_method_get_vtable_slot (decl) + mono_class_interface_offset (class, decl->klass);
3290 vtable [dslot] = overrides [i*2 + 1];
3291 vtable [dslot]->slot = dslot;
3293 override_map = g_hash_table_new (mono_aligned_addr_hash, NULL);
3295 g_hash_table_insert (override_map, overrides [i * 2], overrides [i * 2 + 1]);
3297 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3298 mono_security_core_clr_check_override (class, vtable [dslot], decl);
3301 TRACE_INTERFACE_VTABLE (print_overrides (override_map, "AFTER OVERRIDING INTERFACE METHODS"));
3302 TRACE_INTERFACE_VTABLE (print_vtable_full (class, vtable, cur_slot, first_non_interface_slot, "AFTER OVERRIDING INTERFACE METHODS", FALSE));
3304 // Loop on all implemented interfaces...
3305 for (i = 0; i < class->interface_offsets_count; i++) {
3306 MonoClass *parent = class->parent;
3308 gboolean interface_is_explicitly_implemented_by_class;
3311 ic = class->interfaces_packed [i];
3312 ic_offset = mono_class_interface_offset (class, ic);
3314 mono_class_setup_methods (ic);
3316 // Check if this interface is explicitly implemented (instead of just inherited)
3317 if (parent != NULL) {
3318 int implemented_interfaces_index;
3319 interface_is_explicitly_implemented_by_class = FALSE;
3320 for (implemented_interfaces_index = 0; implemented_interfaces_index < class->interface_count; implemented_interfaces_index++) {
3321 if (ic == class->interfaces [implemented_interfaces_index]) {
3322 interface_is_explicitly_implemented_by_class = TRUE;
3327 interface_is_explicitly_implemented_by_class = TRUE;
3330 // Loop on all interface methods...
3331 for (im_index = 0; im_index < ic->method.count; im_index++) {
3332 MonoMethod *im = ic->methods [im_index];
3333 int im_slot = ic_offset + im->slot;
3334 MonoMethod *override_im = (override_map != NULL) ? g_hash_table_lookup (override_map, im) : NULL;
3336 if (im->flags & METHOD_ATTRIBUTE_STATIC)
3339 // If there is an explicit implementation, just use it right away,
3340 // otherwise look for a matching method
3341 if (override_im == NULL) {
3346 // First look for a suitable method among the class methods
3348 while ((cm = mono_class_get_virtual_methods (class, &iter))) {
3349 TRACE_INTERFACE_VTABLE (printf (" For slot %d ('%s'.'%s':'%s'), trying method '%s'.'%s':'%s'... [EXPLICIT IMPLEMENTATION = %d][SLOT IS NULL = %d]", im_slot, ic->name_space, ic->name, im->name, cm->klass->name_space, cm->klass->name, cm->name, interface_is_explicitly_implemented_by_class, (vtable [im_slot] == NULL)));
3350 if (check_interface_method_override (class, im, cm, TRUE, interface_is_explicitly_implemented_by_class, (vtable [im_slot] == NULL), security_enabled)) {
3351 TRACE_INTERFACE_VTABLE (printf ("[check ok]: ASSIGNING"));
3352 vtable [im_slot] = cm;
3353 /* Why do we need this? */
3358 TRACE_INTERFACE_VTABLE (printf ("\n"));
3361 // If the slot is still empty, look in all the inherited virtual methods...
3362 if ((vtable [im_slot] == NULL) && class->parent != NULL) {
3363 MonoClass *parent = class->parent;
3364 // Reverse order, so that last added methods are preferred
3365 for (cm_index = parent->vtable_size - 1; cm_index >= 0; cm_index--) {
3366 MonoMethod *cm = parent->vtable [cm_index];
3368 TRACE_INTERFACE_VTABLE ((cm != NULL) && printf (" For slot %d ('%s'.'%s':'%s'), trying (ancestor) method '%s'.'%s':'%s'... ", im_slot, ic->name_space, ic->name, im->name, cm->klass->name_space, cm->klass->name, cm->name));
3369 if ((cm != NULL) && check_interface_method_override (class, im, cm, FALSE, FALSE, TRUE, security_enabled)) {
3370 TRACE_INTERFACE_VTABLE (printf ("[everything ok]: ASSIGNING"));
3371 vtable [im_slot] = cm;
3372 /* Why do we need this? */
3378 TRACE_INTERFACE_VTABLE ((cm != NULL) && printf ("\n"));
3382 g_assert (vtable [im_slot] == override_im);
3387 // If the class is not abstract, check that all its interface slots are full.
3388 // The check is done here and not directly at the end of the loop above because
3389 // it can happen (for injected generic array interfaces) that the same slot is
3390 // processed multiple times (those interfaces have overlapping slots), and it
3391 // will not always be the first pass the one that fills the slot.
3392 if (! (class->flags & TYPE_ATTRIBUTE_ABSTRACT)) {
3393 for (i = 0; i < class->interface_offsets_count; i++) {
3397 ic = class->interfaces_packed [i];
3398 ic_offset = mono_class_interface_offset (class, ic);
3400 for (im_index = 0; im_index < ic->method.count; im_index++) {
3401 MonoMethod *im = ic->methods [im_index];
3402 int im_slot = ic_offset + im->slot;
3404 if (im->flags & METHOD_ATTRIBUTE_STATIC)
3407 TRACE_INTERFACE_VTABLE (printf (" [class is not abstract, checking slot %d for interface '%s'.'%s', method %s, slot check is %d]\n",
3408 im_slot, ic->name_space, ic->name, im->name, (vtable [im_slot] == NULL)));
3409 if (vtable [im_slot] == NULL) {
3410 print_unimplemented_interface_method_info (class, ic, im, im_slot, overrides, onum);
3411 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
3413 g_hash_table_destroy (override_map);
3420 TRACE_INTERFACE_VTABLE (print_vtable_full (class, vtable, cur_slot, first_non_interface_slot, "AFTER SETTING UP INTERFACE METHODS", FALSE));
3422 while ((cm = mono_class_get_virtual_methods (class, &class_iter))) {
3424 * If the method is REUSE_SLOT, we must check in the
3425 * base class for a method to override.
3427 if (!(cm->flags & METHOD_ATTRIBUTE_NEW_SLOT)) {
3429 for (k = class->parent; k ; k = k->parent) {
3434 while ((m1 = mono_class_get_virtual_methods (k, &k_iter))) {
3435 MonoMethodSignature *cmsig, *m1sig;
3437 cmsig = mono_method_signature (cm);
3438 m1sig = mono_method_signature (m1);
3440 if (!cmsig || !m1sig) {
3441 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
3445 if (!strcmp(cm->name, m1->name) &&
3446 mono_metadata_signature_equal (cmsig, m1sig)) {
3448 /* CAS - SecurityAction.InheritanceDemand */
3449 if (security_enabled && (m1->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
3450 mono_secman_inheritancedemand_method (cm, m1);
3453 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3454 mono_security_core_clr_check_override (class, cm, m1);
3456 slot = mono_method_get_vtable_slot (m1);
3457 g_assert (cm->slot < max_vtsize);
3459 override_map = g_hash_table_new (mono_aligned_addr_hash, NULL);
3460 g_hash_table_insert (override_map, m1, cm);
3472 cm->slot = cur_slot++;
3474 if (!(cm->flags & METHOD_ATTRIBUTE_ABSTRACT))
3475 vtable [cm->slot] = cm;
3478 /* override non interface methods */
3479 for (i = 0; i < onum; i++) {
3480 MonoMethod *decl = overrides [i*2];
3481 if (!MONO_CLASS_IS_INTERFACE (decl->klass)) {
3482 g_assert (decl->slot != -1);
3483 vtable [decl->slot] = overrides [i*2 + 1];
3484 overrides [i * 2 + 1]->slot = decl->slot;
3486 override_map = g_hash_table_new (mono_aligned_addr_hash, NULL);
3487 g_hash_table_insert (override_map, decl, overrides [i * 2 + 1]);
3489 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3490 mono_security_core_clr_check_override (class, vtable [decl->slot], decl);
3495 * If a method occupies more than one place in the vtable, and it is
3496 * overriden, then change the other occurances too.
3499 for (i = 0; i < max_vtsize; ++i)
3501 MonoMethod *cm = g_hash_table_lookup (override_map, vtable [i]);
3506 g_hash_table_destroy (override_map);
3509 /* Ensure that all vtable slots are filled with concrete instance methods */
3510 if (!(class->flags & TYPE_ATTRIBUTE_ABSTRACT)) {
3511 for (i = 0; i < cur_slot; ++i) {
3512 if (vtable [i] == NULL || (vtable [i]->flags & (METHOD_ATTRIBUTE_ABSTRACT | METHOD_ATTRIBUTE_STATIC))) {
3513 char *type_name = mono_type_get_full_name (class);
3514 char *method_name = vtable [i] ? mono_method_full_name (vtable [i], TRUE) : g_strdup ("none");
3515 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup_printf ("Type %s has invalid vtable method slot %d with method %s", type_name, i, method_name));
3517 g_free (method_name);
3523 if (class->generic_class) {
3524 MonoClass *gklass = class->generic_class->container_class;
3526 mono_class_init (gklass);
3528 class->vtable_size = MAX (gklass->vtable_size, cur_slot);
3530 /* Check that the vtable_size value computed in mono_class_init () is correct */
3531 if (class->vtable_size)
3532 g_assert (cur_slot == class->vtable_size);
3533 class->vtable_size = cur_slot;
3536 /* Try to share the vtable with our parent. */
3537 if (class->parent && (class->parent->vtable_size == class->vtable_size) && (memcmp (class->parent->vtable, vtable, sizeof (gpointer) * class->vtable_size) == 0)) {
3538 mono_memory_barrier ();
3539 class->vtable = class->parent->vtable;
3541 MonoMethod **tmp = mono_image_alloc0 (class->image, sizeof (gpointer) * class->vtable_size);
3542 memcpy (tmp, vtable, sizeof (gpointer) * class->vtable_size);
3543 mono_memory_barrier ();
3544 class->vtable = tmp;
3547 DEBUG_INTERFACE_VTABLE (print_vtable_full (class, class->vtable, class->vtable_size, first_non_interface_slot, "FINALLY", FALSE));
3548 if (mono_print_vtable) {
3551 print_implemented_interfaces (class);
3553 for (i = 0; i <= max_iid; i++)
3554 if (MONO_CLASS_IMPLEMENTS_INTERFACE (class, i))
3557 printf ("VTable %s (vtable entries = %d, interfaces = %d)\n", mono_type_full_name (&class->byval_arg),
3558 class->vtable_size, icount);
3560 for (i = 0; i < class->vtable_size; ++i) {
3565 printf (" slot assigned: %03d, slot index: %03d %s\n", i, cm->slot,
3566 mono_method_full_name (cm, TRUE));
3572 printf ("Interfaces %s.%s (max_iid = %d)\n", class->name_space,
3573 class->name, max_iid);
3575 for (i = 0; i < class->interface_count; i++) {
3576 ic = class->interfaces [i];
3577 printf (" slot offset: %03d, method count: %03d, iid: %03d %s\n",
3578 mono_class_interface_offset (class, ic),
3579 ic->method.count, ic->interface_id, mono_type_full_name (&ic->byval_arg));
3582 for (k = class->parent; k ; k = k->parent) {
3583 for (i = 0; i < k->interface_count; i++) {
3584 ic = k->interfaces [i];
3585 printf (" slot offset: %03d, method count: %03d, iid: %03d %s\n",
3586 mono_class_interface_offset (class, ic),
3587 ic->method.count, ic->interface_id, mono_type_full_name (&ic->byval_arg));
3593 VERIFY_INTERFACE_VTABLE (mono_class_verify_vtable (class));
3597 * mono_method_get_vtable_slot:
3599 * Returns method->slot, computing it if neccesary.
3600 * LOCKING: Acquires the loader lock.
3603 mono_method_get_vtable_slot (MonoMethod *method)
3605 if (method->slot == -1) {
3606 mono_class_setup_vtable (method->klass);
3607 g_assert (method->slot != -1);
3609 return method->slot;
3613 * mono_method_get_vtable_index:
3616 * Returns the index into the runtime vtable to access the method or,
3617 * in the case of a virtual generic method, the virtual generic method
3621 mono_method_get_vtable_index (MonoMethod *method)
3623 if (method->is_inflated && (method->flags & METHOD_ATTRIBUTE_VIRTUAL)) {
3624 MonoMethodInflated *imethod = (MonoMethodInflated*)method;
3625 if (imethod->declaring->is_generic)
3626 return mono_method_get_vtable_slot (imethod->declaring);
3628 return mono_method_get_vtable_slot (method);
3631 static MonoMethod *default_ghc = NULL;
3632 static MonoMethod *default_finalize = NULL;
3633 static int finalize_slot = -1;
3634 static int ghc_slot = -1;
3637 initialize_object_slots (MonoClass *class)
3642 if (class == mono_defaults.object_class) {
3643 mono_class_setup_vtable (class);
3644 for (i = 0; i < class->vtable_size; ++i) {
3645 MonoMethod *cm = class->vtable [i];
3647 if (!strcmp (cm->name, "GetHashCode"))
3649 else if (!strcmp (cm->name, "Finalize"))
3653 g_assert (ghc_slot > 0);
3654 default_ghc = class->vtable [ghc_slot];
3656 g_assert (finalize_slot > 0);
3657 default_finalize = class->vtable [finalize_slot];
3662 MonoMethod *array_method;
3664 } GenericArrayMethodInfo;
3666 static int generic_array_method_num = 0;
3667 static GenericArrayMethodInfo *generic_array_method_info = NULL;
3670 generic_array_methods (MonoClass *class)
3672 int i, count_generic = 0;
3673 GList *list = NULL, *tmp;
3674 if (generic_array_method_num)
3675 return generic_array_method_num;
3676 mono_class_setup_methods (class->parent);
3677 for (i = 0; i < class->parent->method.count; i++) {
3678 MonoMethod *m = class->parent->methods [i];
3679 if (!strncmp (m->name, "InternalArray__", 15)) {
3681 list = g_list_prepend (list, m);
3684 list = g_list_reverse (list);
3685 generic_array_method_info = g_malloc (sizeof (GenericArrayMethodInfo) * count_generic);
3687 for (tmp = list; tmp; tmp = tmp->next) {
3688 const char *mname, *iname;
3690 MonoMethod *m = tmp->data;
3691 generic_array_method_info [i].array_method = m;
3692 if (!strncmp (m->name, "InternalArray__ICollection_", 27)) {
3693 iname = "System.Collections.Generic.ICollection`1.";
3694 mname = m->name + 27;
3695 } else if (!strncmp (m->name, "InternalArray__IEnumerable_", 27)) {
3696 iname = "System.Collections.Generic.IEnumerable`1.";
3697 mname = m->name + 27;
3698 } else if (!strncmp (m->name, "InternalArray__", 15)) {
3699 iname = "System.Collections.Generic.IList`1.";
3700 mname = m->name + 15;
3702 g_assert_not_reached ();
3705 name = mono_image_alloc (mono_defaults.corlib, strlen (iname) + strlen (mname) + 1);
3706 strcpy (name, iname);
3707 strcpy (name + strlen (iname), mname);
3708 generic_array_method_info [i].name = name;
3711 /*g_print ("array generic methods: %d\n", count_generic);*/
3713 generic_array_method_num = count_generic;
3715 return generic_array_method_num;
3719 setup_generic_array_ifaces (MonoClass *class, MonoClass *iface, MonoMethod **methods, int pos)
3721 MonoGenericContext tmp_context;
3724 tmp_context.class_inst = NULL;
3725 tmp_context.method_inst = iface->generic_class->context.class_inst;
3726 //g_print ("setting up array interface: %s\n", mono_type_get_name_full (&iface->byval_arg, 0));
3728 for (i = 0; i < generic_array_method_num; i++) {
3729 MonoMethod *m = generic_array_method_info [i].array_method;
3730 MonoMethod *inflated;
3732 inflated = mono_class_inflate_generic_method (m, &tmp_context);
3733 methods [pos++] = mono_marshal_get_generic_array_helper (class, iface, generic_array_method_info [i].name, inflated);
3738 concat_two_strings_with_zero (MonoImage *image, const char *s1, const char *s2)
3740 int len = strlen (s1) + strlen (s2) + 2;
3741 char *s = mono_image_alloc (image, len);
3744 result = g_snprintf (s, len, "%s%c%s", s1, '\0', s2);
3745 g_assert (result == len - 1);
3751 set_failure_from_loader_error (MonoClass *class, MonoLoaderError *error)
3753 gpointer exception_data = NULL;
3755 switch (error->exception_type) {
3756 case MONO_EXCEPTION_TYPE_LOAD:
3757 exception_data = concat_two_strings_with_zero (class->image, error->class_name, error->assembly_name);
3760 case MONO_EXCEPTION_MISSING_METHOD:
3761 exception_data = concat_two_strings_with_zero (class->image, error->class_name, error->member_name);
3764 case MONO_EXCEPTION_MISSING_FIELD: {
3765 const char *name_space = error->klass->name_space ? error->klass->name_space : NULL;
3766 const char *class_name;
3769 class_name = g_strdup_printf ("%s.%s", name_space, error->klass->name);
3771 class_name = error->klass->name;
3773 exception_data = concat_two_strings_with_zero (class->image, class_name, error->member_name);
3776 g_free ((void*)class_name);
3780 case MONO_EXCEPTION_FILE_NOT_FOUND: {
3783 if (error->ref_only)
3784 msg = "Cannot resolve dependency to assembly '%s' because it has not been preloaded. When using the ReflectionOnly APIs, dependent assemblies must be pre-loaded or loaded on demand through the ReflectionOnlyAssemblyResolve event.";
3786 msg = "Could not load file or assembly '%s' or one of its dependencies.";
3788 exception_data = concat_two_strings_with_zero (class->image, msg, error->assembly_name);
3792 case MONO_EXCEPTION_BAD_IMAGE:
3793 exception_data = error->msg;
3797 g_assert_not_reached ();
3800 mono_class_set_failure (class, error->exception_type, exception_data);
3805 * @class: the class to initialize
3807 * Compute the instance_size, class_size and other infos that cannot be
3808 * computed at mono_class_get() time. Also compute vtable_size if possible.
3809 * Returns TRUE on success or FALSE if there was a problem in loading
3810 * the type (incorrect assemblies, missing assemblies, methods, etc).
3812 * LOCKING: Acquires the loader lock.
3815 mono_class_init (MonoClass *class)
3818 MonoCachedClassInfo cached_info;
3819 gboolean has_cached_info;
3820 int class_init_ok = TRUE;
3824 /* Double-checking locking pattern */
3826 return class->exception_type == MONO_EXCEPTION_NONE;
3828 /*g_print ("Init class %s\n", class->name);*/
3830 /* We do everything inside the lock to prevent races */
3831 mono_loader_lock ();
3833 if (class->inited) {
3834 mono_loader_unlock ();
3835 /* Somebody might have gotten in before us */
3836 return class->exception_type == MONO_EXCEPTION_NONE;
3839 if (class->init_pending) {
3840 mono_loader_unlock ();
3841 /* this indicates a cyclic dependency */
3842 g_error ("pending init %s.%s\n", class->name_space, class->name);
3845 class->init_pending = 1;
3847 /* CAS - SecurityAction.InheritanceDemand */
3848 if (mono_is_security_manager_active () && class->parent && (class->parent->flags & TYPE_ATTRIBUTE_HAS_SECURITY)) {
3849 mono_secman_inheritancedemand_class (class, class->parent);
3852 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3853 mono_security_core_clr_check_inheritance (class);
3855 mono_stats.initialized_class_count++;
3857 if (class->generic_class && !class->generic_class->is_dynamic) {
3858 MonoClass *gklass = class->generic_class->container_class;
3860 mono_stats.generic_class_count++;
3862 class->method = gklass->method;
3863 class->field = gklass->field;
3865 mono_class_init (gklass);
3866 // FIXME: Why is this needed ?
3867 mono_class_setup_methods (gklass);
3869 if (MONO_CLASS_IS_INTERFACE (class))
3870 class->interface_id = mono_get_unique_iid (class);
3873 if (class->parent && !class->parent->inited)
3874 mono_class_init (class->parent);
3876 has_cached_info = mono_class_get_cached_class_info (class, &cached_info);
3878 if (class->generic_class || class->image->dynamic || !class->type_token || (has_cached_info && !cached_info.has_nested_classes))
3879 class->nested_classes_inited = TRUE;
3882 * Computes the size used by the fields, and their locations
3884 if (has_cached_info) {
3885 class->instance_size = cached_info.instance_size;
3886 class->sizes.class_size = cached_info.class_size;
3887 class->packing_size = cached_info.packing_size;
3888 class->min_align = cached_info.min_align;
3889 class->blittable = cached_info.blittable;
3890 class->has_references = cached_info.has_references;
3891 class->has_static_refs = cached_info.has_static_refs;
3892 class->no_special_static_fields = cached_info.no_special_static_fields;
3895 if (!class->size_inited){
3896 mono_class_setup_fields (class);
3897 if (class->exception_type || mono_loader_get_last_error ()){
3898 class_init_ok = FALSE;
3903 /* Initialize arrays */
3905 class->method.count = 3 + (class->rank > 1? 2: 1);
3907 if (class->interface_count) {
3908 int count_generic = generic_array_methods (class);
3909 class->method.count += class->interface_count * count_generic;
3913 mono_class_setup_supertypes (class);
3916 initialize_object_slots (class);
3919 * Initialize the rest of the data without creating a generic vtable if possible.
3920 * If possible, also compute vtable_size, so mono_class_create_runtime_vtable () can
3921 * also avoid computing a generic vtable.
3923 if (has_cached_info) {
3925 class->vtable_size = cached_info.vtable_size;
3926 class->has_finalize = cached_info.has_finalize;
3927 class->ghcimpl = cached_info.ghcimpl;
3928 class->has_cctor = cached_info.has_cctor;
3929 } else if (class->rank == 1 && class->byval_arg.type == MONO_TYPE_SZARRAY) {
3930 static int szarray_vtable_size = 0;
3933 if (!szarray_vtable_size) {
3934 mono_class_setup_vtable (class);
3935 szarray_vtable_size = class->vtable_size;
3937 class->vtable_size = szarray_vtable_size;
3939 } else if (class->generic_class && !MONO_CLASS_IS_INTERFACE (class)) {
3940 MonoClass *gklass = class->generic_class->container_class;
3942 /* Generic instance case */
3943 class->ghcimpl = gklass->ghcimpl;
3944 class->has_finalize = gklass->has_finalize;
3945 class->has_cctor = gklass->has_cctor;
3947 mono_class_setup_vtable (gklass);
3948 if (gklass->exception_type)
3951 class->vtable_size = gklass->vtable_size;
3955 /* ghcimpl is not currently used
3957 if (class->parent) {
3958 MonoMethod *cmethod = class->vtable [ghc_slot];
3959 if (cmethod->is_inflated)
3960 cmethod = ((MonoMethodInflated*)cmethod)->declaring;
3961 if (cmethod == default_ghc) {
3967 /* Interfaces and valuetypes are not supposed to have finalizers */
3968 if (!(MONO_CLASS_IS_INTERFACE (class) || class->valuetype)) {
3969 MonoMethod *cmethod = NULL;
3971 if (class->parent && class->parent->has_finalize) {
3972 class->has_finalize = 1;
3974 if (class->type_token) {
3975 cmethod = find_method_in_metadata (class, "Finalize", 0, METHOD_ATTRIBUTE_VIRTUAL);
3976 } else if (class->parent) {
3977 /* FIXME: Optimize this */
3978 mono_class_setup_vtable (class);
3979 if (class->exception_type || mono_loader_get_last_error ())
3981 cmethod = class->vtable [finalize_slot];
3985 /* Check that this is really the finalizer method */
3986 mono_class_setup_vtable (class);
3987 if (class->exception_type || mono_loader_get_last_error ())
3990 class->has_finalize = 0;
3991 if (class->parent) {
3992 cmethod = class->vtable [finalize_slot];
3993 if (cmethod->is_inflated)
3994 cmethod = ((MonoMethodInflated*)cmethod)->declaring;
3995 if (cmethod != default_finalize) {
3996 class->has_finalize = 1;
4003 /* C# doesn't allow interfaces to have cctors */
4004 if (!MONO_CLASS_IS_INTERFACE (class) || class->image != mono_defaults.corlib) {
4005 MonoMethod *cmethod = NULL;
4007 if (class->type_token) {
4008 cmethod = find_method_in_metadata (class, ".cctor", 0, METHOD_ATTRIBUTE_SPECIAL_NAME);
4009 /* The find_method function ignores the 'flags' argument */
4010 if (cmethod && (cmethod->flags & METHOD_ATTRIBUTE_SPECIAL_NAME))
4011 class->has_cctor = 1;
4013 mono_class_setup_methods (class);
4015 for (i = 0; i < class->method.count; ++i) {
4016 MonoMethod *method = class->methods [i];
4017 if ((method->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) &&
4018 (strcmp (".cctor", method->name) == 0)) {
4019 class->has_cctor = 1;
4027 if (!mono_setup_vtable_in_class_init) {
4029 * This is an embedding API break, since the caller might assume that
4030 * mono_class_init () constructs a generic vtable, so vtable construction errors
4031 * are visible right after the mono_class_init (), and not after
4032 * mono_class_vtable ().
4034 if (class->parent) {
4035 /* This will compute class->parent->vtable_size for some classes */
4036 mono_class_init (class->parent);
4037 if (class->parent->exception_type || mono_loader_get_last_error ())
4039 if (!class->parent->vtable_size) {
4040 /* FIXME: Get rid of this somehow */
4041 mono_class_setup_vtable (class->parent);
4042 if (class->parent->exception_type || mono_loader_get_last_error ())
4045 setup_interface_offsets (class, class->parent->vtable_size);
4047 setup_interface_offsets (class, 0);
4050 mono_class_setup_vtable (class);
4052 if (MONO_CLASS_IS_INTERFACE (class))
4053 setup_interface_offsets (class, 0);
4056 if (mono_verifier_is_enabled_for_class (class) && !mono_verifier_verify_class (class)) {
4057 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, concat_two_strings_with_zero (class->image, class->name, class->image->assembly_name));
4058 class_init_ok = FALSE;
4064 class_init_ok = FALSE;
4067 /* Because of the double-checking locking pattern */
4068 mono_memory_barrier ();
4070 class->init_pending = 0;
4072 if (mono_loader_get_last_error ()) {
4073 if (class->exception_type == MONO_EXCEPTION_NONE)
4074 set_failure_from_loader_error (class, mono_loader_get_last_error ());
4076 mono_loader_clear_error ();
4079 mono_loader_unlock ();
4081 if (mono_debugger_class_init_func)
4082 mono_debugger_class_init_func (class);
4084 return class_init_ok;
4088 is_corlib_image (MonoImage *image)
4090 /* FIXME: allow the dynamic case for our compilers and with full trust */
4092 return image->assembly && !strcmp (image->assembly->aname.name, "mscorlib");
4094 return image == mono_defaults.corlib;
4098 * LOCKING: this assumes the loader lock is held
4101 mono_class_setup_mono_type (MonoClass *class)
4103 const char *name = class->name;
4104 const char *nspace = class->name_space;
4105 gboolean is_corlib = is_corlib_image (class->image);
4107 class->this_arg.byref = 1;
4108 class->this_arg.data.klass = class;
4109 class->this_arg.type = MONO_TYPE_CLASS;
4110 class->byval_arg.data.klass = class;
4111 class->byval_arg.type = MONO_TYPE_CLASS;
4113 if (is_corlib && !strcmp (nspace, "System")) {
4114 if (!strcmp (name, "ValueType")) {
4116 * do not set the valuetype bit for System.ValueType.
4117 * class->valuetype = 1;
4119 class->blittable = TRUE;
4120 } else if (!strcmp (name, "Enum")) {
4122 * do not set the valuetype bit for System.Enum.
4123 * class->valuetype = 1;
4125 class->valuetype = 0;
4126 class->enumtype = 0;
4127 } else if (!strcmp (name, "Object")) {
4128 class->this_arg.type = class->byval_arg.type = MONO_TYPE_OBJECT;
4129 } else if (!strcmp (name, "String")) {
4130 class->this_arg.type = class->byval_arg.type = MONO_TYPE_STRING;
4131 } else if (!strcmp (name, "TypedReference")) {
4132 class->this_arg.type = class->byval_arg.type = MONO_TYPE_TYPEDBYREF;
4136 if (class->valuetype) {
4137 int t = MONO_TYPE_VALUETYPE;
4139 if (is_corlib && !strcmp (nspace, "System")) {
4142 if (!strcmp (name, "Boolean")) {
4143 t = MONO_TYPE_BOOLEAN;
4144 } else if (!strcmp(name, "Byte")) {
4146 class->blittable = TRUE;
4150 if (!strcmp (name, "Char")) {
4155 if (!strcmp (name, "Double")) {
4157 class->blittable = TRUE;
4161 if (!strcmp (name, "Int32")) {
4163 class->blittable = TRUE;
4164 } else if (!strcmp(name, "Int16")) {
4166 class->blittable = TRUE;
4167 } else if (!strcmp(name, "Int64")) {
4169 class->blittable = TRUE;
4170 } else if (!strcmp(name, "IntPtr")) {
4172 class->blittable = TRUE;
4176 if (!strcmp (name, "Single")) {
4178 class->blittable = TRUE;
4179 } else if (!strcmp(name, "SByte")) {
4181 class->blittable = TRUE;
4185 if (!strcmp (name, "UInt32")) {
4187 class->blittable = TRUE;
4188 } else if (!strcmp(name, "UInt16")) {
4190 class->blittable = TRUE;
4191 } else if (!strcmp(name, "UInt64")) {
4193 class->blittable = TRUE;
4194 } else if (!strcmp(name, "UIntPtr")) {
4196 class->blittable = TRUE;
4200 if (!strcmp (name, "TypedReference")) {
4201 t = MONO_TYPE_TYPEDBYREF;
4202 class->blittable = TRUE;
4206 if (!strcmp (name, "Void")) {
4214 class->this_arg.type = class->byval_arg.type = t;
4217 if (MONO_CLASS_IS_INTERFACE (class))
4218 class->interface_id = mono_get_unique_iid (class);
4223 * LOCKING: this assumes the loader lock is held
4226 mono_class_setup_parent (MonoClass *class, MonoClass *parent)
4228 gboolean system_namespace;
4229 gboolean is_corlib = is_corlib_image (class->image);
4231 system_namespace = !strcmp (class->name_space, "System") && is_corlib;
4233 /* if root of the hierarchy */
4234 if (system_namespace && !strcmp (class->name, "Object")) {
4235 class->parent = NULL;
4236 class->instance_size = sizeof (MonoObject);
4239 if (!strcmp (class->name, "<Module>")) {
4240 class->parent = NULL;
4241 class->instance_size = 0;
4245 if (!MONO_CLASS_IS_INTERFACE (class)) {
4246 /* Imported COM Objects always derive from __ComObject. */
4247 if (MONO_CLASS_IS_IMPORT (class)) {
4248 mono_init_com_types ();
4249 if (parent == mono_defaults.object_class)
4250 parent = mono_defaults.com_object_class;
4253 /* set the parent to something useful and safe, but mark the type as broken */
4254 parent = mono_defaults.object_class;
4255 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4258 class->parent = parent;
4260 if (parent->generic_class && !parent->name) {
4262 * If the parent is a generic instance, we may get
4263 * called before it is fully initialized, especially
4264 * before it has its name.
4269 class->marshalbyref = parent->marshalbyref;
4270 class->contextbound = parent->contextbound;
4271 class->delegate = parent->delegate;
4272 if (MONO_CLASS_IS_IMPORT (class))
4273 class->is_com_object = 1;
4275 class->is_com_object = parent->is_com_object;
4277 if (system_namespace) {
4278 if (*class->name == 'M' && !strcmp (class->name, "MarshalByRefObject"))
4279 class->marshalbyref = 1;
4281 if (*class->name == 'C' && !strcmp (class->name, "ContextBoundObject"))
4282 class->contextbound = 1;
4284 if (*class->name == 'D' && !strcmp (class->name, "Delegate"))
4285 class->delegate = 1;
4288 if (class->parent->enumtype || (is_corlib_image (class->parent->image) && (strcmp (class->parent->name, "ValueType") == 0) &&
4289 (strcmp (class->parent->name_space, "System") == 0)))
4290 class->valuetype = 1;
4291 if (is_corlib_image (class->parent->image) && ((strcmp (class->parent->name, "Enum") == 0) && (strcmp (class->parent->name_space, "System") == 0))) {
4292 class->valuetype = class->enumtype = 1;
4294 /*class->enumtype = class->parent->enumtype; */
4295 mono_class_setup_supertypes (class);
4297 /* initialize com types if COM interfaces are present */
4298 if (MONO_CLASS_IS_IMPORT (class))
4299 mono_init_com_types ();
4300 class->parent = NULL;
4306 * mono_class_setup_supertypes:
4309 * Build the data structure needed to make fast type checks work.
4310 * This currently sets two fields in @class:
4311 * - idepth: distance between @class and System.Object in the type
4313 * - supertypes: array of classes: each element has a class in the hierarchy
4314 * starting from @class up to System.Object
4316 * LOCKING: this assumes the loader lock is held
4319 mono_class_setup_supertypes (MonoClass *class)
4323 if (class->supertypes)
4326 if (class->parent && !class->parent->supertypes)
4327 mono_class_setup_supertypes (class->parent);
4329 class->idepth = class->parent->idepth + 1;
4333 ms = MAX (MONO_DEFAULT_SUPERTABLE_SIZE, class->idepth);
4334 class->supertypes = mono_image_alloc0 (class->image, sizeof (MonoClass *) * ms);
4336 if (class->parent) {
4337 class->supertypes [class->idepth - 1] = class;
4338 memcpy (class->supertypes, class->parent->supertypes, class->parent->idepth * sizeof (gpointer));
4340 class->supertypes [0] = class;
4345 * mono_class_create_from_typedef:
4346 * @image: image where the token is valid
4347 * @type_token: typedef token
4349 * Create the MonoClass* representing the specified type token.
4350 * @type_token must be a TypeDef token.
4353 mono_class_create_from_typedef (MonoImage *image, guint32 type_token)
4355 MonoTableInfo *tt = &image->tables [MONO_TABLE_TYPEDEF];
4356 MonoClass *class, *parent = NULL;
4357 guint32 cols [MONO_TYPEDEF_SIZE];
4358 guint32 cols_next [MONO_TYPEDEF_SIZE];
4359 guint tidx = mono_metadata_token_index (type_token);
4360 MonoGenericContext *context = NULL;
4361 const char *name, *nspace;
4363 MonoClass **interfaces;
4364 guint32 field_last, method_last;
4365 guint32 nesting_tokeen;
4367 mono_loader_lock ();
4369 if ((class = mono_internal_hash_table_lookup (&image->class_cache, GUINT_TO_POINTER (type_token)))) {
4370 mono_loader_unlock ();
4374 g_assert (mono_metadata_token_table (type_token) == MONO_TABLE_TYPEDEF);
4376 mono_metadata_decode_row (tt, tidx - 1, cols, MONO_TYPEDEF_SIZE);
4378 name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
4379 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
4381 class = mono_image_alloc0 (image, sizeof (MonoClass));
4384 class->name_space = nspace;
4386 mono_profiler_class_event (class, MONO_PROFILE_START_LOAD);
4388 class->image = image;
4389 class->type_token = type_token;
4390 class->flags = cols [MONO_TYPEDEF_FLAGS];
4392 mono_internal_hash_table_insert (&image->class_cache, GUINT_TO_POINTER (type_token), class);
4394 classes_size += sizeof (MonoClass);
4397 * Check whether we're a generic type definition.
4399 class->generic_container = mono_metadata_load_generic_params (image, class->type_token, NULL);
4400 if (class->generic_container) {
4401 class->is_generic = 1;
4402 class->generic_container->owner.klass = class;
4403 context = &class->generic_container->context;
4406 if (cols [MONO_TYPEDEF_EXTENDS]) {
4407 guint32 parent_token = mono_metadata_token_from_dor (cols [MONO_TYPEDEF_EXTENDS]);
4409 if (mono_metadata_token_table (parent_token) == MONO_TABLE_TYPESPEC) {
4410 /*WARNING: this must satisfy mono_metadata_type_hash*/
4411 class->this_arg.byref = 1;
4412 class->this_arg.data.klass = class;
4413 class->this_arg.type = MONO_TYPE_CLASS;
4414 class->byval_arg.data.klass = class;
4415 class->byval_arg.type = MONO_TYPE_CLASS;
4417 parent = mono_class_get_full (image, parent_token, context);
4419 if (parent == NULL){
4420 mono_internal_hash_table_remove (&image->class_cache, GUINT_TO_POINTER (type_token));
4421 mono_loader_unlock ();
4422 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
4427 /* do this early so it's available for interfaces in setup_mono_type () */
4428 if ((nesting_tokeen = mono_metadata_nested_in_typedef (image, type_token)))
4429 class->nested_in = mono_class_create_from_typedef (image, nesting_tokeen);
4431 mono_class_setup_parent (class, parent);
4433 /* uses ->valuetype, which is initialized by mono_class_setup_parent above */
4434 mono_class_setup_mono_type (class);
4436 if (!class->enumtype) {
4437 if (!mono_metadata_interfaces_from_typedef_full (
4438 image, type_token, &interfaces, &icount, FALSE, context)){
4439 mono_loader_unlock ();
4440 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
4444 class->interfaces = interfaces;
4445 class->interface_count = icount;
4446 class->interfaces_inited = 1;
4449 if ((class->flags & TYPE_ATTRIBUTE_STRING_FORMAT_MASK) == TYPE_ATTRIBUTE_UNICODE_CLASS)
4453 if ((class->flags & TYPE_ATTRIBUTE_STRING_FORMAT_MASK) == TYPE_ATTRIBUTE_AUTO_CLASS)
4457 class->cast_class = class->element_class = class;
4459 /*g_print ("Load class %s\n", name);*/
4462 * Compute the field and method lists
4464 class->field.first = cols [MONO_TYPEDEF_FIELD_LIST] - 1;
4465 class->method.first = cols [MONO_TYPEDEF_METHOD_LIST] - 1;
4467 if (tt->rows > tidx){
4468 mono_metadata_decode_row (tt, tidx, cols_next, MONO_TYPEDEF_SIZE);
4469 field_last = cols_next [MONO_TYPEDEF_FIELD_LIST] - 1;
4470 method_last = cols_next [MONO_TYPEDEF_METHOD_LIST] - 1;
4472 field_last = image->tables [MONO_TABLE_FIELD].rows;
4473 method_last = image->tables [MONO_TABLE_METHOD].rows;
4476 if (cols [MONO_TYPEDEF_FIELD_LIST] &&
4477 cols [MONO_TYPEDEF_FIELD_LIST] <= image->tables [MONO_TABLE_FIELD].rows)
4478 class->field.count = field_last - class->field.first;
4480 class->field.count = 0;
4482 if (cols [MONO_TYPEDEF_METHOD_LIST] <= image->tables [MONO_TABLE_METHOD].rows)
4483 class->method.count = method_last - class->method.first;
4485 class->method.count = 0;
4487 /* reserve space to store vector pointer in arrays */
4488 if (is_corlib_image (image) && !strcmp (nspace, "System") && !strcmp (name, "Array")) {
4489 class->instance_size += 2 * sizeof (gpointer);
4490 g_assert (class->field.count == 0);
4493 if (class->enumtype) {
4494 MonoType *enum_basetype = mono_class_find_enum_basetype (class);
4495 if (!enum_basetype) {
4496 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4497 mono_loader_unlock ();
4498 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
4501 class->cast_class = class->element_class = mono_class_from_mono_type (enum_basetype);
4505 * If we're a generic type definition, load the constraints.
4506 * We must do this after the class has been constructed to make certain recursive scenarios
4509 if (class->generic_container && !mono_metadata_load_generic_param_constraints_full (image, type_token, class->generic_container)){
4510 char *class_name = g_strdup_printf("%s.%s", class->name_space, class->name);
4511 char *error = concat_two_strings_with_zero (class->image, class_name, class->image->assembly_name);
4512 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, error);
4513 g_free (class_name);
4514 mono_loader_unlock ();
4515 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
4519 if (class->image->assembly_name && !strcmp (class->image->assembly_name, "Mono.Simd") && !strcmp (nspace, "Mono.Simd")) {
4520 if (!strncmp (name, "Vector", 6))
4521 class->simd_type = !strcmp (name + 6, "2d") || !strcmp (name + 6, "2ul") || !strcmp (name + 6, "2l") || !strcmp (name + 6, "4f") || !strcmp (name + 6, "4ui") || !strcmp (name + 6, "4i") || !strcmp (name + 6, "8s") || !strcmp (name + 6, "8us") || !strcmp (name + 6, "16b") || !strcmp (name + 6, "16sb");
4524 mono_loader_unlock ();
4526 mono_profiler_class_loaded (class, MONO_PROFILE_OK);
4531 /** is klass Nullable<T>? */
4533 mono_class_is_nullable (MonoClass *klass)
4535 return klass->generic_class != NULL &&
4536 klass->generic_class->container_class == mono_defaults.generic_nullable_class;
4540 /** if klass is T? return T */
4542 mono_class_get_nullable_param (MonoClass *klass)
4544 g_assert (mono_class_is_nullable (klass));
4545 return mono_class_from_mono_type (klass->generic_class->context.class_inst->type_argv [0]);
4549 * Create the `MonoClass' for an instantiation of a generic type.
4550 * We only do this if we actually need it.
4553 mono_generic_class_get_class (MonoGenericClass *gclass)
4555 MonoClass *klass, *gklass;
4557 mono_loader_lock ();
4558 if (gclass->cached_class) {
4559 mono_loader_unlock ();
4560 return gclass->cached_class;
4563 gclass->cached_class = g_malloc0 (sizeof (MonoClass));
4564 klass = gclass->cached_class;
4566 gklass = gclass->container_class;
4568 if (gklass->nested_in) {
4570 * FIXME: the nested type context should include everything the
4571 * nesting context should have, but it may also have additional
4572 * generic parameters...
4574 klass->nested_in = mono_class_inflate_generic_class (gklass->nested_in,
4575 mono_generic_class_get_context (gclass));
4578 klass->name = gklass->name;
4579 klass->name_space = gklass->name_space;
4581 mono_profiler_class_event (klass, MONO_PROFILE_START_LOAD);
4583 klass->image = gklass->image;
4584 klass->flags = gklass->flags;
4585 klass->type_token = gklass->type_token;
4586 klass->field.count = gklass->field.count;
4588 klass->is_inflated = 1;
4589 klass->generic_class = gclass;
4591 klass->this_arg.type = klass->byval_arg.type = MONO_TYPE_GENERICINST;
4592 klass->this_arg.data.generic_class = klass->byval_arg.data.generic_class = gclass;
4593 klass->this_arg.byref = TRUE;
4594 klass->enumtype = gklass->enumtype;
4595 klass->valuetype = gklass->valuetype;
4597 klass->cast_class = klass->element_class = klass;
4599 if (mono_class_is_nullable (klass))
4600 klass->cast_class = klass->element_class = mono_class_get_nullable_param (klass);
4603 * We're not interested in the nested classes of a generic instance.
4604 * We use the generic type definition to look for nested classes.
4607 if (gklass->parent) {
4608 klass->parent = mono_class_inflate_generic_class (gklass->parent, mono_generic_class_get_context (gclass));
4612 mono_class_setup_parent (klass, klass->parent);
4614 if (klass->enumtype) {
4615 klass->cast_class = gklass->cast_class;
4616 klass->element_class = gklass->element_class;
4619 if (gclass->is_dynamic) {
4622 mono_class_setup_supertypes (klass);
4624 if (klass->enumtype) {
4626 * For enums, gklass->fields might not been set, but instance_size etc. is
4627 * already set in mono_reflection_create_internal_class (). For non-enums,
4628 * these will be computed normally in mono_class_layout_fields ().
4630 klass->instance_size = gklass->instance_size;
4631 klass->sizes.class_size = gklass->sizes.class_size;
4632 klass->size_inited = 1;
4636 mono_profiler_class_loaded (klass, MONO_PROFILE_OK);
4638 inflated_classes ++;
4639 inflated_classes_size += sizeof (MonoClass);
4641 mono_loader_unlock ();
4647 make_generic_param_class (MonoGenericParam *param, MonoImage *image, gboolean is_mvar, MonoGenericParamInfo *pinfo)
4649 MonoClass *klass, **ptr;
4654 image = mono_defaults.corlib;
4656 klass = mono_image_alloc0 (image, sizeof (MonoClass));
4657 classes_size += sizeof (MonoClass);
4660 klass->name = pinfo->name;
4662 int n = mono_generic_param_num (param);
4663 klass->name = mono_image_alloc0 (image, 16);
4664 sprintf ((char*)klass->name, "%d", n);
4667 klass->name_space = "";
4668 mono_profiler_class_event (klass, MONO_PROFILE_START_LOAD);
4672 for (ptr = pinfo->constraints; ptr && *ptr; ptr++, count++)
4676 if ((count > 0) && !MONO_CLASS_IS_INTERFACE (pinfo->constraints [0])) {
4677 klass->parent = pinfo->constraints [0];
4679 } else if (pinfo && pinfo->flags & GENERIC_PARAMETER_ATTRIBUTE_VALUE_TYPE_CONSTRAINT)
4680 klass->parent = mono_class_from_name (mono_defaults.corlib, "System", "ValueType");
4682 klass->parent = mono_defaults.object_class;
4685 if (count - pos > 0) {
4686 klass->interface_count = count - pos;
4687 klass->interfaces = mono_image_alloc0 (image, sizeof (MonoClass *) * (count - pos));
4688 for (i = pos; i < count; i++)
4689 klass->interfaces [i - pos] = pinfo->constraints [i];
4692 klass->image = image;
4694 klass->inited = TRUE;
4695 klass->cast_class = klass->element_class = klass;
4696 klass->flags = TYPE_ATTRIBUTE_PUBLIC;
4698 klass->this_arg.type = klass->byval_arg.type = is_mvar ? MONO_TYPE_MVAR : MONO_TYPE_VAR;
4699 klass->this_arg.data.generic_param = klass->byval_arg.data.generic_param = param;
4700 klass->this_arg.byref = TRUE;
4702 /* FIXME: shouldn't this be ->type_token? */
4703 klass->sizes.generic_param_token = pinfo ? pinfo->token : 0;
4705 mono_class_setup_supertypes (klass);
4710 #define FAST_CACHE_SIZE 1024
4711 static MonoClass *var_cache_fast [FAST_CACHE_SIZE];
4712 static MonoClass *mvar_cache_fast [FAST_CACHE_SIZE];
4713 static GHashTable *var_cache_slow;
4714 static GHashTable *mvar_cache_slow;
4717 get_anon_gparam_class (MonoGenericParam *param, gboolean is_mvar)
4719 int n = mono_generic_param_num (param);
4722 if (n < FAST_CACHE_SIZE)
4723 return (is_mvar ? mvar_cache_fast : var_cache_fast) [n];
4724 ht = is_mvar ? mvar_cache_slow : var_cache_slow;
4725 return ht ? g_hash_table_lookup (ht, GINT_TO_POINTER (n)) : NULL;
4729 set_anon_gparam_class (MonoGenericParam *param, gboolean is_mvar, MonoClass *klass)
4731 int n = mono_generic_param_num (param);
4734 if (n < FAST_CACHE_SIZE) {
4735 (is_mvar ? mvar_cache_fast : var_cache_fast) [n] = klass;
4738 ht = is_mvar ? mvar_cache_slow : var_cache_slow;
4740 ht = g_hash_table_new (NULL, NULL);
4742 mvar_cache_slow = ht;
4744 var_cache_slow = ht;
4747 g_hash_table_insert (ht, GINT_TO_POINTER (n), klass);
4751 * LOCKING: Acquires the loader lock.
4754 mono_class_from_generic_parameter (MonoGenericParam *param, MonoImage *image, gboolean is_mvar)
4756 MonoGenericContainer *container = mono_generic_param_owner (param);
4757 MonoGenericParamInfo *pinfo;
4760 mono_loader_lock ();
4763 pinfo = mono_generic_param_info (param);
4764 if (pinfo->pklass) {
4765 mono_loader_unlock ();
4766 return pinfo->pklass;
4772 klass = get_anon_gparam_class (param, is_mvar);
4774 mono_loader_unlock ();
4779 if (!image && container) {
4781 MonoMethod *method = container->owner.method;
4782 image = (method && method->klass) ? method->klass->image : NULL;
4784 MonoClass *klass = container->owner.klass;
4785 // FIXME: 'klass' should not be null
4786 // But, monodis creates GenericContainers without associating a owner to it
4787 image = klass ? klass->image : NULL;
4791 klass = make_generic_param_class (param, image, is_mvar, pinfo);
4793 mono_memory_barrier ();
4796 pinfo->pklass = klass;
4798 set_anon_gparam_class (param, is_mvar, klass);
4800 mono_loader_unlock ();
4802 /* FIXME: Should this go inside 'make_generic_param_klass'? */
4803 mono_profiler_class_loaded (klass, MONO_PROFILE_OK);
4809 mono_ptr_class_get (MonoType *type)
4812 MonoClass *el_class;
4816 el_class = mono_class_from_mono_type (type);
4817 image = el_class->image;
4819 mono_loader_lock ();
4821 if (!image->ptr_cache)
4822 image->ptr_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
4824 if ((result = g_hash_table_lookup (image->ptr_cache, el_class))) {
4825 mono_loader_unlock ();
4828 result = mono_image_alloc0 (image, sizeof (MonoClass));
4830 classes_size += sizeof (MonoClass);
4832 result->parent = NULL; /* no parent for PTR types */
4833 result->name_space = el_class->name_space;
4834 name = g_strdup_printf ("%s*", el_class->name);
4835 result->name = mono_image_strdup (image, name);
4838 mono_profiler_class_event (result, MONO_PROFILE_START_LOAD);
4840 result->image = el_class->image;
4841 result->inited = TRUE;
4842 result->flags = TYPE_ATTRIBUTE_CLASS | (el_class->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK);
4843 /* Can pointers get boxed? */
4844 result->instance_size = sizeof (gpointer);
4845 result->cast_class = result->element_class = el_class;
4846 result->blittable = TRUE;
4848 result->this_arg.type = result->byval_arg.type = MONO_TYPE_PTR;
4849 result->this_arg.data.type = result->byval_arg.data.type = &result->element_class->byval_arg;
4850 result->this_arg.byref = TRUE;
4852 mono_class_setup_supertypes (result);
4854 g_hash_table_insert (image->ptr_cache, el_class, result);
4856 mono_loader_unlock ();
4858 mono_profiler_class_loaded (result, MONO_PROFILE_OK);
4864 mono_fnptr_class_get (MonoMethodSignature *sig)
4867 static GHashTable *ptr_hash = NULL;
4869 /* FIXME: These should be allocate from a mempool as well, but which one ? */
4871 mono_loader_lock ();
4874 ptr_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
4876 if ((result = g_hash_table_lookup (ptr_hash, sig))) {
4877 mono_loader_unlock ();
4880 result = g_new0 (MonoClass, 1);
4882 result->parent = NULL; /* no parent for PTR types */
4883 result->name_space = "System";
4884 result->name = "MonoFNPtrFakeClass";
4886 mono_profiler_class_event (result, MONO_PROFILE_START_LOAD);
4888 result->image = mono_defaults.corlib; /* need to fix... */
4889 result->inited = TRUE;
4890 result->flags = TYPE_ATTRIBUTE_CLASS; /* | (el_class->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK); */
4891 /* Can pointers get boxed? */
4892 result->instance_size = sizeof (gpointer);
4893 result->cast_class = result->element_class = result;
4894 result->blittable = TRUE;
4896 result->this_arg.type = result->byval_arg.type = MONO_TYPE_FNPTR;
4897 result->this_arg.data.method = result->byval_arg.data.method = sig;
4898 result->this_arg.byref = TRUE;
4899 result->blittable = TRUE;
4901 mono_class_setup_supertypes (result);
4903 g_hash_table_insert (ptr_hash, sig, result);
4905 mono_loader_unlock ();
4907 mono_profiler_class_loaded (result, MONO_PROFILE_OK);
4913 mono_class_from_mono_type (MonoType *type)
4915 switch (type->type) {
4916 case MONO_TYPE_OBJECT:
4917 return type->data.klass? type->data.klass: mono_defaults.object_class;
4918 case MONO_TYPE_VOID:
4919 return type->data.klass? type->data.klass: mono_defaults.void_class;
4920 case MONO_TYPE_BOOLEAN:
4921 return type->data.klass? type->data.klass: mono_defaults.boolean_class;
4922 case MONO_TYPE_CHAR:
4923 return type->data.klass? type->data.klass: mono_defaults.char_class;
4925 return type->data.klass? type->data.klass: mono_defaults.sbyte_class;
4927 return type->data.klass? type->data.klass: mono_defaults.byte_class;
4929 return type->data.klass? type->data.klass: mono_defaults.int16_class;
4931 return type->data.klass? type->data.klass: mono_defaults.uint16_class;
4933 return type->data.klass? type->data.klass: mono_defaults.int32_class;
4935 return type->data.klass? type->data.klass: mono_defaults.uint32_class;
4937 return type->data.klass? type->data.klass: mono_defaults.int_class;
4939 return type->data.klass? type->data.klass: mono_defaults.uint_class;
4941 return type->data.klass? type->data.klass: mono_defaults.int64_class;
4943 return type->data.klass? type->data.klass: mono_defaults.uint64_class;
4945 return type->data.klass? type->data.klass: mono_defaults.single_class;
4947 return type->data.klass? type->data.klass: mono_defaults.double_class;
4948 case MONO_TYPE_STRING:
4949 return type->data.klass? type->data.klass: mono_defaults.string_class;
4950 case MONO_TYPE_TYPEDBYREF:
4951 return type->data.klass? type->data.klass: mono_defaults.typed_reference_class;
4952 case MONO_TYPE_ARRAY:
4953 return mono_bounded_array_class_get (type->data.array->eklass, type->data.array->rank, TRUE);
4955 return mono_ptr_class_get (type->data.type);
4956 case MONO_TYPE_FNPTR:
4957 return mono_fnptr_class_get (type->data.method);
4958 case MONO_TYPE_SZARRAY:
4959 return mono_array_class_get (type->data.klass, 1);
4960 case MONO_TYPE_CLASS:
4961 case MONO_TYPE_VALUETYPE:
4962 return type->data.klass;
4963 case MONO_TYPE_GENERICINST:
4964 return mono_generic_class_get_class (type->data.generic_class);
4966 return mono_class_from_generic_parameter (type->data.generic_param, NULL, FALSE);
4967 case MONO_TYPE_MVAR:
4968 return mono_class_from_generic_parameter (type->data.generic_param, NULL, TRUE);
4970 g_warning ("mono_class_from_mono_type: implement me 0x%02x\n", type->type);
4971 g_assert_not_reached ();
4978 * mono_type_retrieve_from_typespec
4979 * @image: context where the image is created
4980 * @type_spec: typespec token
4981 * @context: the generic context used to evaluate generic instantiations in
4984 mono_type_retrieve_from_typespec (MonoImage *image, guint32 type_spec, MonoGenericContext *context, gboolean *did_inflate)
4986 MonoType *t = mono_type_create_from_typespec (image, type_spec);
4989 if (context && (context->class_inst || context->method_inst)) {
4990 MonoType *inflated = inflate_generic_type (NULL, t, context);
4993 *did_inflate = TRUE;
5000 * mono_class_create_from_typespec
5001 * @image: context where the image is created
5002 * @type_spec: typespec token
5003 * @context: the generic context used to evaluate generic instantiations in
5006 mono_class_create_from_typespec (MonoImage *image, guint32 type_spec, MonoGenericContext *context)
5009 gboolean inflated = FALSE;
5010 MonoType *t = mono_type_retrieve_from_typespec (image, type_spec, context, &inflated);
5013 ret = mono_class_from_mono_type (t);
5015 mono_metadata_free_type (t);
5020 * mono_bounded_array_class_get:
5021 * @element_class: element class
5022 * @rank: the dimension of the array class
5023 * @bounded: whenever the array has non-zero bounds
5025 * Returns: a class object describing the array with element type @element_type and
5029 mono_bounded_array_class_get (MonoClass *eclass, guint32 rank, gboolean bounded)
5033 MonoClass *parent = NULL;
5034 GSList *list, *rootlist = NULL;
5037 gboolean corlib_type = FALSE;
5039 g_assert (rank <= 255);
5042 /* bounded only matters for one-dimensional arrays */
5045 image = eclass->image;
5047 if (rank == 1 && !bounded) {
5049 * This case is very frequent not just during compilation because of calls
5050 * from mono_class_from_mono_type (), mono_array_new (),
5051 * Array:CreateInstance (), etc, so use a separate cache + a separate lock.
5053 EnterCriticalSection (&image->szarray_cache_lock);
5054 if (!image->szarray_cache)
5055 image->szarray_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
5056 class = g_hash_table_lookup (image->szarray_cache, eclass);
5057 LeaveCriticalSection (&image->szarray_cache_lock);
5061 mono_loader_lock ();
5063 mono_loader_lock ();
5065 if (!image->array_cache)
5066 image->array_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
5068 if ((rootlist = list = g_hash_table_lookup (image->array_cache, eclass))) {
5069 for (; list; list = list->next) {
5071 if ((class->rank == rank) && (class->byval_arg.type == (((rank > 1) || bounded) ? MONO_TYPE_ARRAY : MONO_TYPE_SZARRAY))) {
5072 mono_loader_unlock ();
5079 /* for the building corlib use System.Array from it */
5080 if (image->assembly && image->assembly->dynamic && image->assembly_name && strcmp (image->assembly_name, "mscorlib") == 0) {
5081 parent = mono_class_from_name (image, "System", "Array");
5084 parent = mono_defaults.array_class;
5085 if (!parent->inited)
5086 mono_class_init (parent);
5089 class = mono_image_alloc0 (image, sizeof (MonoClass));
5091 class->image = image;
5092 class->name_space = eclass->name_space;
5093 nsize = strlen (eclass->name);
5094 name = g_malloc (nsize + 2 + rank + 1);
5095 memcpy (name, eclass->name, nsize);
5098 memset (name + nsize + 1, ',', rank - 1);
5100 name [nsize + rank] = '*';
5101 name [nsize + rank + bounded] = ']';
5102 name [nsize + rank + bounded + 1] = 0;
5103 class->name = mono_image_strdup (image, name);
5106 mono_profiler_class_event (class, MONO_PROFILE_START_LOAD);
5108 classes_size += sizeof (MonoClass);
5110 class->type_token = 0;
5111 /* all arrays are marked serializable and sealed, bug #42779 */
5112 class->flags = TYPE_ATTRIBUTE_CLASS | TYPE_ATTRIBUTE_SERIALIZABLE | TYPE_ATTRIBUTE_SEALED |
5113 (eclass->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK);
5114 class->parent = parent;
5115 class->instance_size = mono_class_instance_size (class->parent);
5117 if (eclass->enumtype && !mono_class_enum_basetype (eclass)) {
5118 if (!eclass->reflection_info || eclass->wastypebuilder) {
5119 g_warning ("Only incomplete TypeBuilder objects are allowed to be an enum without base_type");
5120 g_assert (eclass->reflection_info && !eclass->wastypebuilder);
5122 /* element_size -1 is ok as this is not an instantitable type*/
5123 class->sizes.element_size = -1;
5125 class->sizes.element_size = mono_class_array_element_size (eclass);
5127 mono_class_setup_supertypes (class);
5129 if (eclass->generic_class)
5130 mono_class_init (eclass);
5131 if (!eclass->size_inited)
5132 mono_class_setup_fields (eclass);
5133 class->has_references = MONO_TYPE_IS_REFERENCE (&eclass->byval_arg) || eclass->has_references? TRUE: FALSE;
5137 if (eclass->enumtype)
5138 class->cast_class = eclass->element_class;
5140 class->cast_class = eclass;
5142 class->element_class = eclass;
5144 if ((rank > 1) || bounded) {
5145 MonoArrayType *at = mono_image_alloc0 (image, sizeof (MonoArrayType));
5146 class->byval_arg.type = MONO_TYPE_ARRAY;
5147 class->byval_arg.data.array = at;
5148 at->eklass = eclass;
5150 /* FIXME: complete.... */
5152 class->byval_arg.type = MONO_TYPE_SZARRAY;
5153 class->byval_arg.data.klass = eclass;
5155 class->this_arg = class->byval_arg;
5156 class->this_arg.byref = 1;
5161 class->generic_container = eclass->generic_container;
5163 if (rank == 1 && !bounded) {
5164 MonoClass *prev_class;
5166 EnterCriticalSection (&image->szarray_cache_lock);
5167 prev_class = g_hash_table_lookup (image->szarray_cache, eclass);
5169 /* Someone got in before us */
5172 g_hash_table_insert (image->szarray_cache, eclass, class);
5173 LeaveCriticalSection (&image->szarray_cache_lock);
5175 list = g_slist_append (rootlist, class);
5176 g_hash_table_insert (image->array_cache, eclass, list);
5179 mono_loader_unlock ();
5181 mono_profiler_class_loaded (class, MONO_PROFILE_OK);
5187 * mono_array_class_get:
5188 * @element_class: element class
5189 * @rank: the dimension of the array class
5191 * Returns: a class object describing the array with element type @element_type and
5195 mono_array_class_get (MonoClass *eclass, guint32 rank)
5197 return mono_bounded_array_class_get (eclass, rank, FALSE);
5201 * mono_class_instance_size:
5204 * Returns: the size of an object instance
5207 mono_class_instance_size (MonoClass *klass)
5209 if (!klass->size_inited)
5210 mono_class_init (klass);
5212 return klass->instance_size;
5216 * mono_class_min_align:
5219 * Returns: minimm alignment requirements
5222 mono_class_min_align (MonoClass *klass)
5224 if (!klass->size_inited)
5225 mono_class_init (klass);
5227 return klass->min_align;
5231 * mono_class_value_size:
5234 * This function is used for value types, and return the
5235 * space and the alignment to store that kind of value object.
5237 * Returns: the size of a value of kind @klass
5240 mono_class_value_size (MonoClass *klass, guint32 *align)
5244 /* fixme: check disable, because we still have external revereces to
5245 * mscorlib and Dummy Objects
5247 /*g_assert (klass->valuetype);*/
5249 size = mono_class_instance_size (klass) - sizeof (MonoObject);
5252 *align = klass->min_align;
5258 * mono_class_data_size:
5261 * Returns: the size of the static class data
5264 mono_class_data_size (MonoClass *klass)
5267 mono_class_init (klass);
5269 /* in arrays, sizes.class_size is unioned with element_size
5270 * and arrays have no static fields
5274 return klass->sizes.class_size;
5278 * Auxiliary routine to mono_class_get_field
5280 * Takes a field index instead of a field token.
5282 static MonoClassField *
5283 mono_class_get_field_idx (MonoClass *class, int idx)
5285 mono_class_setup_fields_locking (class);
5288 if (class->image->uncompressed_metadata) {
5290 * class->field.first points to the FieldPtr table, while idx points into the
5291 * Field table, so we have to do a search.
5293 /*FIXME this is broken for types with multiple fields with the same name.*/
5294 const char *name = mono_metadata_string_heap (class->image, mono_metadata_decode_row_col (&class->image->tables [MONO_TABLE_FIELD], idx, MONO_FIELD_NAME));
5297 for (i = 0; i < class->field.count; ++i)
5298 if (mono_field_get_name (&class->fields [i]) == name)
5299 return &class->fields [i];
5300 g_assert_not_reached ();
5302 if (class->field.count) {
5303 if ((idx >= class->field.first) && (idx < class->field.first + class->field.count)){
5304 return &class->fields [idx - class->field.first];
5308 class = class->parent;
5314 * mono_class_get_field:
5315 * @class: the class to lookup the field.
5316 * @field_token: the field token
5318 * Returns: A MonoClassField representing the type and offset of
5319 * the field, or a NULL value if the field does not belong to this
5323 mono_class_get_field (MonoClass *class, guint32 field_token)
5325 int idx = mono_metadata_token_index (field_token);
5327 g_assert (mono_metadata_token_code (field_token) == MONO_TOKEN_FIELD_DEF);
5329 return mono_class_get_field_idx (class, idx - 1);
5333 * mono_class_get_field_from_name:
5334 * @klass: the class to lookup the field.
5335 * @name: the field name
5337 * Search the class @klass and it's parents for a field with the name @name.
5339 * Returns: the MonoClassField pointer of the named field or NULL
5342 mono_class_get_field_from_name (MonoClass *klass, const char *name)
5344 return mono_class_get_field_from_name_full (klass, name, NULL);
5348 * mono_class_get_field_from_name_full:
5349 * @klass: the class to lookup the field.
5350 * @name: the field name
5351 * @type: the type of the fields. This optional.
5353 * Search the class @klass and it's parents for a field with the name @name and type @type.
5355 * If @klass is an inflated generic type, the type comparison is done with the equivalent field
5356 * of its generic type definition.
5358 * Returns: the MonoClassField pointer of the named field or NULL
5361 mono_class_get_field_from_name_full (MonoClass *klass, const char *name, MonoType *type)
5365 mono_class_setup_fields_locking (klass);
5367 for (i = 0; i < klass->field.count; ++i) {
5368 MonoClassField *field = &klass->fields [i];
5370 if (strcmp (name, mono_field_get_name (field)) != 0)
5374 MonoType *field_type = mono_metadata_get_corresponding_field_from_generic_type_definition (field)->type;
5375 if (!mono_metadata_type_equal_full (type, field_type, TRUE))
5380 klass = klass->parent;
5386 * mono_class_get_field_token:
5387 * @field: the field we need the token of
5389 * Get the token of a field. Note that the tokesn is only valid for the image
5390 * the field was loaded from. Don't use this function for fields in dynamic types.
5392 * Returns: the token representing the field in the image it was loaded from.
5395 mono_class_get_field_token (MonoClassField *field)
5397 MonoClass *klass = field->parent;
5400 mono_class_setup_fields_locking (klass);
5402 for (i = 0; i < klass->field.count; ++i) {
5403 if (&klass->fields [i] == field) {
5404 int idx = klass->field.first + i + 1;
5406 if (klass->image->uncompressed_metadata)
5407 idx = mono_metadata_translate_token_index (klass->image, MONO_TABLE_FIELD, idx);
5408 return mono_metadata_make_token (MONO_TABLE_FIELD, idx);
5411 klass = klass->parent;
5414 g_assert_not_reached ();
5419 mono_field_get_index (MonoClassField *field)
5421 int index = field - field->parent->fields;
5423 g_assert (index >= 0 && index < field->parent->field.count);
5429 * mono_class_get_field_default_value:
5431 * Return the default value of the field as a pointer into the metadata blob.
5434 mono_class_get_field_default_value (MonoClassField *field, MonoTypeEnum *def_type)
5437 guint32 constant_cols [MONO_CONSTANT_SIZE];
5439 MonoClass *klass = field->parent;
5441 g_assert (field->type->attrs & FIELD_ATTRIBUTE_HAS_DEFAULT);
5443 if (!klass->ext || !klass->ext->field_def_values) {
5444 mono_loader_lock ();
5445 mono_class_alloc_ext (klass);
5446 if (!klass->ext->field_def_values)
5447 klass->ext->field_def_values = mono_image_alloc0 (klass->image, sizeof (MonoFieldDefaultValue) * klass->field.count);
5448 mono_loader_unlock ();
5451 field_index = mono_field_get_index (field);
5453 if (!klass->ext->field_def_values [field_index].data) {
5454 cindex = mono_metadata_get_constant_index (field->parent->image, mono_class_get_field_token (field), 0);
5456 g_assert (!(field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_RVA));
5458 mono_metadata_decode_row (&field->parent->image->tables [MONO_TABLE_CONSTANT], cindex - 1, constant_cols, MONO_CONSTANT_SIZE);
5459 klass->ext->field_def_values [field_index].def_type = constant_cols [MONO_CONSTANT_TYPE];
5460 klass->ext->field_def_values [field_index].data = (gpointer)mono_metadata_blob_heap (field->parent->image, constant_cols [MONO_CONSTANT_VALUE]);
5463 *def_type = klass->ext->field_def_values [field_index].def_type;
5464 return klass->ext->field_def_values [field_index].data;
5468 mono_class_get_event_token (MonoEvent *event)
5470 MonoClass *klass = event->parent;
5475 for (i = 0; i < klass->ext->event.count; ++i) {
5476 if (&klass->ext->events [i] == event)
5477 return mono_metadata_make_token (MONO_TABLE_EVENT, klass->ext->event.first + i + 1);
5480 klass = klass->parent;
5483 g_assert_not_reached ();
5488 mono_class_get_property_from_name (MonoClass *klass, const char *name)
5492 gpointer iter = NULL;
5493 while ((p = mono_class_get_properties (klass, &iter))) {
5494 if (! strcmp (name, p->name))
5497 klass = klass->parent;
5503 mono_class_get_property_token (MonoProperty *prop)
5505 MonoClass *klass = prop->parent;
5509 gpointer iter = NULL;
5510 while ((p = mono_class_get_properties (klass, &iter))) {
5511 if (&klass->ext->properties [i] == prop)
5512 return mono_metadata_make_token (MONO_TABLE_PROPERTY, klass->ext->property.first + i + 1);
5516 klass = klass->parent;
5519 g_assert_not_reached ();
5524 mono_class_name_from_token (MonoImage *image, guint32 type_token)
5526 const char *name, *nspace;
5528 return g_strdup_printf ("DynamicType 0x%08x", type_token);
5530 switch (type_token & 0xff000000){
5531 case MONO_TOKEN_TYPE_DEF: {
5532 guint32 cols [MONO_TYPEDEF_SIZE];
5533 MonoTableInfo *tt = &image->tables [MONO_TABLE_TYPEDEF];
5534 guint tidx = mono_metadata_token_index (type_token);
5536 mono_metadata_decode_row (tt, tidx - 1, cols, MONO_TYPEDEF_SIZE);
5537 name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
5538 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
5539 if (strlen (nspace) == 0)
5540 return g_strdup_printf ("%s", name);
5542 return g_strdup_printf ("%s.%s", nspace, name);
5545 case MONO_TOKEN_TYPE_REF: {
5546 guint32 cols [MONO_TYPEREF_SIZE];
5547 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEREF];
5549 mono_metadata_decode_row (t, (type_token&0xffffff)-1, cols, MONO_TYPEREF_SIZE);
5550 name = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAME]);
5551 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAMESPACE]);
5552 if (strlen (nspace) == 0)
5553 return g_strdup_printf ("%s", name);
5555 return g_strdup_printf ("%s.%s", nspace, name);
5558 case MONO_TOKEN_TYPE_SPEC:
5559 return g_strdup_printf ("Typespec 0x%08x", type_token);
5561 g_assert_not_reached ();
5568 mono_assembly_name_from_token (MonoImage *image, guint32 type_token)
5571 return g_strdup_printf ("DynamicAssembly %s", image->name);
5573 switch (type_token & 0xff000000){
5574 case MONO_TOKEN_TYPE_DEF:
5575 return mono_stringify_assembly_name (&image->assembly->aname);
5577 case MONO_TOKEN_TYPE_REF: {
5578 MonoAssemblyName aname;
5579 guint32 cols [MONO_TYPEREF_SIZE];
5580 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEREF];
5583 mono_metadata_decode_row (t, (type_token&0xffffff)-1, cols, MONO_TYPEREF_SIZE);
5585 idx = cols [MONO_TYPEREF_SCOPE] >> MONO_RESOLTION_SCOPE_BITS;
5586 switch (cols [MONO_TYPEREF_SCOPE] & MONO_RESOLTION_SCOPE_MASK) {
5587 case MONO_RESOLTION_SCOPE_MODULE:
5589 return g_strdup ("");
5590 case MONO_RESOLTION_SCOPE_MODULEREF:
5592 return g_strdup ("");
5593 case MONO_RESOLTION_SCOPE_TYPEREF:
5595 return g_strdup ("");
5596 case MONO_RESOLTION_SCOPE_ASSEMBLYREF:
5597 mono_assembly_get_assemblyref (image, idx - 1, &aname);
5598 return mono_stringify_assembly_name (&aname);
5600 g_assert_not_reached ();
5604 case MONO_TOKEN_TYPE_SPEC:
5606 return g_strdup ("");
5608 g_assert_not_reached ();
5615 * mono_class_get_full:
5616 * @image: the image where the class resides
5617 * @type_token: the token for the class
5618 * @context: the generic context used to evaluate generic instantiations in
5620 * Returns: the MonoClass that represents @type_token in @image
5623 mono_class_get_full (MonoImage *image, guint32 type_token, MonoGenericContext *context)
5625 MonoClass *class = NULL;
5627 if (image->dynamic) {
5628 int table = mono_metadata_token_table (type_token);
5630 if (table != MONO_TABLE_TYPEDEF && table != MONO_TABLE_TYPEREF && table != MONO_TABLE_TYPESPEC) {
5631 mono_loader_set_error_bad_image (g_strdup ("Bad type token."));
5634 return mono_lookup_dynamic_token (image, type_token, context);
5637 switch (type_token & 0xff000000){
5638 case MONO_TOKEN_TYPE_DEF:
5639 class = mono_class_create_from_typedef (image, type_token);
5641 case MONO_TOKEN_TYPE_REF:
5642 class = mono_class_from_typeref (image, type_token);
5644 case MONO_TOKEN_TYPE_SPEC:
5645 class = mono_class_create_from_typespec (image, type_token, context);
5648 g_warning ("unknown token type %x", type_token & 0xff000000);
5649 g_assert_not_reached ();
5653 char *name = mono_class_name_from_token (image, type_token);
5654 char *assembly = mono_assembly_name_from_token (image, type_token);
5655 mono_loader_set_error_type_load (name, assembly);
5663 * mono_type_get_full:
5664 * @image: the image where the type resides
5665 * @type_token: the token for the type
5666 * @context: the generic context used to evaluate generic instantiations in
5668 * This functions exists to fullfill the fact that sometimes it's desirable to have access to the
5670 * Returns: the MonoType that represents @type_token in @image
5673 mono_type_get_full (MonoImage *image, guint32 type_token, MonoGenericContext *context)
5675 MonoType *type = NULL;
5676 gboolean inflated = FALSE;
5678 //FIXME: this will not fix the very issue for which mono_type_get_full exists -but how to do it then?
5680 return mono_class_get_type (mono_lookup_dynamic_token (image, type_token, context));
5682 if ((type_token & 0xff000000) != MONO_TOKEN_TYPE_SPEC) {
5683 MonoClass *class = mono_class_get_full (image, type_token, context);
5684 return class ? mono_class_get_type (class) : NULL;
5687 type = mono_type_retrieve_from_typespec (image, type_token, context, &inflated);
5690 char *name = mono_class_name_from_token (image, type_token);
5691 char *assembly = mono_assembly_name_from_token (image, type_token);
5692 mono_loader_set_error_type_load (name, assembly);
5697 MonoType *tmp = type;
5698 type = mono_class_get_type (mono_class_from_mono_type (type));
5699 /* FIXME: This is a workaround fo the fact that a typespec token sometimes reference to the generic type definition.
5700 * A MonoClass::byval_arg of a generic type definion has type CLASS.
5701 * Some parts of mono create a GENERICINST to reference a generic type definition and this generates confict with byval_arg.
5703 * The long term solution is to chaise this places and make then set MonoType::type correctly.
5705 if (type->type != tmp->type)
5708 mono_metadata_free_type (tmp);
5715 mono_class_get (MonoImage *image, guint32 type_token)
5717 return mono_class_get_full (image, type_token, NULL);
5721 * mono_image_init_name_cache:
5723 * Initializes the class name cache stored in image->name_cache.
5725 * LOCKING: Acquires the corresponding image lock.
5728 mono_image_init_name_cache (MonoImage *image)
5730 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEDEF];
5731 guint32 cols [MONO_TYPEDEF_SIZE];
5734 guint32 i, visib, nspace_index;
5735 GHashTable *name_cache2, *nspace_table;
5737 mono_image_lock (image);
5739 if (image->name_cache) {
5740 mono_image_unlock (image);
5744 image->name_cache = g_hash_table_new (g_str_hash, g_str_equal);
5746 if (image->dynamic) {
5747 mono_image_unlock (image);
5751 /* Temporary hash table to avoid lookups in the nspace_table */
5752 name_cache2 = g_hash_table_new (NULL, NULL);
5754 for (i = 1; i <= t->rows; ++i) {
5755 mono_metadata_decode_row (t, i - 1, cols, MONO_TYPEDEF_SIZE);
5756 visib = cols [MONO_TYPEDEF_FLAGS] & TYPE_ATTRIBUTE_VISIBILITY_MASK;
5758 * Nested types are accessed from the nesting name. We use the fact that nested types use different visibility flags
5759 * than toplevel types, thus avoiding the need to grovel through the NESTED_TYPE table
5761 if (visib >= TYPE_ATTRIBUTE_NESTED_PUBLIC && visib <= TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM)
5763 name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
5764 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
5766 nspace_index = cols [MONO_TYPEDEF_NAMESPACE];
5767 nspace_table = g_hash_table_lookup (name_cache2, GUINT_TO_POINTER (nspace_index));
5768 if (!nspace_table) {
5769 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
5770 g_hash_table_insert (image->name_cache, (char*)nspace, nspace_table);
5771 g_hash_table_insert (name_cache2, GUINT_TO_POINTER (nspace_index),
5774 g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (i));
5777 /* Load type names from EXPORTEDTYPES table */
5779 MonoTableInfo *t = &image->tables [MONO_TABLE_EXPORTEDTYPE];
5780 guint32 cols [MONO_EXP_TYPE_SIZE];
5783 for (i = 0; i < t->rows; ++i) {
5784 mono_metadata_decode_row (t, i, cols, MONO_EXP_TYPE_SIZE);
5785 name = mono_metadata_string_heap (image, cols [MONO_EXP_TYPE_NAME]);
5786 nspace = mono_metadata_string_heap (image, cols [MONO_EXP_TYPE_NAMESPACE]);
5788 nspace_index = cols [MONO_EXP_TYPE_NAMESPACE];
5789 nspace_table = g_hash_table_lookup (name_cache2, GUINT_TO_POINTER (nspace_index));
5790 if (!nspace_table) {
5791 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
5792 g_hash_table_insert (image->name_cache, (char*)nspace, nspace_table);
5793 g_hash_table_insert (name_cache2, GUINT_TO_POINTER (nspace_index),
5796 g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (mono_metadata_make_token (MONO_TABLE_EXPORTEDTYPE, i + 1)));
5800 g_hash_table_destroy (name_cache2);
5801 mono_image_unlock (image);
5804 /*FIXME Only dynamic assemblies should allow this operation.*/
5806 mono_image_add_to_name_cache (MonoImage *image, const char *nspace,
5807 const char *name, guint32 index)
5809 GHashTable *nspace_table;
5810 GHashTable *name_cache;
5812 mono_image_lock (image);
5814 if (!image->name_cache)
5815 mono_image_init_name_cache (image);
5817 name_cache = image->name_cache;
5818 if (!(nspace_table = g_hash_table_lookup (name_cache, nspace))) {
5819 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
5820 g_hash_table_insert (name_cache, (char *)nspace, (char *)nspace_table);
5822 g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (index));
5824 mono_image_unlock (image);
5833 find_nocase (gpointer key, gpointer value, gpointer user_data)
5835 char *name = (char*)key;
5836 FindUserData *data = (FindUserData*)user_data;
5838 if (!data->value && (g_strcasecmp (name, (char*)data->key) == 0))
5839 data->value = value;
5843 * mono_class_from_name_case:
5844 * @image: The MonoImage where the type is looked up in
5845 * @name_space: the type namespace
5846 * @name: the type short name.
5848 * Obtains a MonoClass with a given namespace and a given name which
5849 * is located in the given MonoImage. The namespace and name
5850 * lookups are case insensitive.
5853 mono_class_from_name_case (MonoImage *image, const char* name_space, const char *name)
5855 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEDEF];
5856 guint32 cols [MONO_TYPEDEF_SIZE];
5861 if (image->dynamic) {
5863 FindUserData user_data;
5865 mono_image_lock (image);
5867 if (!image->name_cache)
5868 mono_image_init_name_cache (image);
5870 user_data.key = name_space;
5871 user_data.value = NULL;
5872 g_hash_table_foreach (image->name_cache, find_nocase, &user_data);
5874 if (user_data.value) {
5875 GHashTable *nspace_table = (GHashTable*)user_data.value;
5877 user_data.key = name;
5878 user_data.value = NULL;
5880 g_hash_table_foreach (nspace_table, find_nocase, &user_data);
5882 if (user_data.value)
5883 token = GPOINTER_TO_UINT (user_data.value);
5886 mono_image_unlock (image);
5889 return mono_class_get (image, MONO_TOKEN_TYPE_DEF | token);
5895 /* add a cache if needed */
5896 for (i = 1; i <= t->rows; ++i) {
5897 mono_metadata_decode_row (t, i - 1, cols, MONO_TYPEDEF_SIZE);
5898 visib = cols [MONO_TYPEDEF_FLAGS] & TYPE_ATTRIBUTE_VISIBILITY_MASK;
5900 * Nested types are accessed from the nesting name. We use the fact that nested types use different visibility flags
5901 * than toplevel types, thus avoiding the need to grovel through the NESTED_TYPE table
5903 if (visib >= TYPE_ATTRIBUTE_NESTED_PUBLIC && visib <= TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM)
5905 n = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
5906 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
5907 if (g_strcasecmp (n, name) == 0 && g_strcasecmp (nspace, name_space) == 0)
5908 return mono_class_get (image, MONO_TOKEN_TYPE_DEF | i);
5914 return_nested_in (MonoClass *class, char *nested)
5917 char *s = strchr (nested, '/');
5918 gpointer iter = NULL;
5925 while ((found = mono_class_get_nested_types (class, &iter))) {
5926 if (strcmp (found->name, nested) == 0) {
5928 return return_nested_in (found, s);
5936 search_modules (MonoImage *image, const char *name_space, const char *name)
5938 MonoTableInfo *file_table = &image->tables [MONO_TABLE_FILE];
5939 MonoImage *file_image;
5944 * The EXPORTEDTYPES table only contains public types, so have to search the
5946 * Note: image->modules contains the contents of the MODULEREF table, while
5947 * the real module list is in the FILE table.
5949 for (i = 0; i < file_table->rows; i++) {
5950 guint32 cols [MONO_FILE_SIZE];
5951 mono_metadata_decode_row (file_table, i, cols, MONO_FILE_SIZE);
5952 if (cols [MONO_FILE_FLAGS] == FILE_CONTAINS_NO_METADATA)
5955 file_image = mono_image_load_file_for_image (image, i + 1);
5957 class = mono_class_from_name (file_image, name_space, name);
5967 * mono_class_from_name:
5968 * @image: The MonoImage where the type is looked up in
5969 * @name_space: the type namespace
5970 * @name: the type short name.
5972 * Obtains a MonoClass with a given namespace and a given name which
5973 * is located in the given MonoImage.
5976 mono_class_from_name (MonoImage *image, const char* name_space, const char *name)
5978 GHashTable *nspace_table;
5979 MonoImage *loaded_image;
5986 if ((nested = strchr (name, '/'))) {
5987 int pos = nested - name;
5988 int len = strlen (name);
5991 memcpy (buf, name, len + 1);
5993 nested = buf + pos + 1;
5997 if (get_class_from_name) {
5998 gboolean res = get_class_from_name (image, name_space, name, &class);
6001 class = search_modules (image, name_space, name);
6003 return class ? return_nested_in (class, nested) : NULL;
6009 mono_image_lock (image);
6011 if (!image->name_cache)
6012 mono_image_init_name_cache (image);
6014 nspace_table = g_hash_table_lookup (image->name_cache, name_space);
6017 token = GPOINTER_TO_UINT (g_hash_table_lookup (nspace_table, name));
6019 mono_image_unlock (image);
6021 if (!token && image->dynamic && image->modules) {
6022 /* Search modules as well */
6023 for (i = 0; i < image->module_count; ++i) {
6024 MonoImage *module = image->modules [i];
6026 class = mono_class_from_name (module, name_space, name);
6033 class = search_modules (image, name_space, name);
6041 if (mono_metadata_token_table (token) == MONO_TABLE_EXPORTEDTYPE) {
6042 MonoTableInfo *t = &image->tables [MONO_TABLE_EXPORTEDTYPE];
6043 guint32 cols [MONO_EXP_TYPE_SIZE];
6046 idx = mono_metadata_token_index (token);
6048 mono_metadata_decode_row (t, idx - 1, cols, MONO_EXP_TYPE_SIZE);
6050 impl = cols [MONO_EXP_TYPE_IMPLEMENTATION];
6051 if ((impl & MONO_IMPLEMENTATION_MASK) == MONO_IMPLEMENTATION_FILE) {
6052 loaded_image = mono_assembly_load_module (image->assembly, impl >> MONO_IMPLEMENTATION_BITS);
6055 class = mono_class_from_name (loaded_image, name_space, name);
6057 return return_nested_in (class, nested);
6059 } else if ((impl & MONO_IMPLEMENTATION_MASK) == MONO_IMPLEMENTATION_ASSEMBLYREF) {
6060 guint32 assembly_idx;
6062 assembly_idx = impl >> MONO_IMPLEMENTATION_BITS;
6064 mono_assembly_load_reference (image, assembly_idx - 1);
6065 g_assert (image->references [assembly_idx - 1]);
6066 if (image->references [assembly_idx - 1] == (gpointer)-1)
6069 /* FIXME: Cycle detection */
6070 return mono_class_from_name (image->references [assembly_idx - 1]->image, name_space, name);
6072 g_error ("not yet implemented");
6076 token = MONO_TOKEN_TYPE_DEF | token;
6078 class = mono_class_get (image, token);
6080 return return_nested_in (class, nested);
6085 mono_class_is_subclass_of (MonoClass *klass, MonoClass *klassc,
6086 gboolean check_interfaces)
6088 g_assert (klassc->idepth > 0);
6089 if (check_interfaces && MONO_CLASS_IS_INTERFACE (klassc) && !MONO_CLASS_IS_INTERFACE (klass)) {
6090 if (MONO_CLASS_IMPLEMENTS_INTERFACE (klass, klassc->interface_id))
6092 } else if (check_interfaces && MONO_CLASS_IS_INTERFACE (klassc) && MONO_CLASS_IS_INTERFACE (klass)) {
6095 for (i = 0; i < klass->interface_count; i ++) {
6096 MonoClass *ic = klass->interfaces [i];
6101 if (!MONO_CLASS_IS_INTERFACE (klass) && mono_class_has_parent (klass, klassc))
6106 * MS.NET thinks interfaces are a subclass of Object, so we think it as
6109 if (klassc == mono_defaults.object_class)
6116 mono_class_has_variant_generic_params (MonoClass *klass)
6119 MonoGenericContainer *container;
6121 if (!klass->generic_class)
6124 container = klass->generic_class->container_class->generic_container;
6126 for (i = 0; i < container->type_argc; ++i)
6127 if (mono_generic_container_get_param_info (container, i)->flags & (MONO_GEN_PARAM_VARIANT|MONO_GEN_PARAM_COVARIANT))
6134 * mono_class_is_assignable_from:
6135 * @klass: the class to be assigned to
6136 * @oklass: the source class
6138 * Return: true if an instance of object oklass can be assigned to an
6139 * instance of object @klass
6142 mono_class_is_assignable_from (MonoClass *klass, MonoClass *oklass)
6145 mono_class_init (klass);
6147 if (!oklass->inited)
6148 mono_class_init (oklass);
6150 if ((klass->byval_arg.type == MONO_TYPE_VAR) || (klass->byval_arg.type == MONO_TYPE_MVAR))
6151 return klass == oklass;
6153 if (MONO_CLASS_IS_INTERFACE (klass)) {
6154 if ((oklass->byval_arg.type == MONO_TYPE_VAR) || (oklass->byval_arg.type == MONO_TYPE_MVAR))
6157 /* interface_offsets might not be set for dynamic classes */
6158 if (oklass->reflection_info && !oklass->interface_bitmap)
6160 * oklass might be a generic type parameter but they have
6161 * interface_offsets set.
6163 return mono_reflection_call_is_assignable_to (oklass, klass);
6164 if (!oklass->interface_bitmap)
6165 /* Happens with generic instances of not-yet created dynamic types */
6167 if (MONO_CLASS_IMPLEMENTS_INTERFACE (oklass, klass->interface_id))
6170 if (mono_class_has_variant_generic_params (klass)) {
6171 if (oklass->generic_class) {
6173 gboolean match = FALSE;
6174 MonoClass *container_class1 = klass->generic_class->container_class;
6175 MonoClass *container_class2 = oklass->generic_class->container_class;
6178 * Check whenever the generic definition of oklass implements the
6179 * generic definition of klass. The IMPLEMENTS_INTERFACE stuff is not usable
6180 * here since the relevant tables are not set up.
6182 for (i = 0; i < container_class2->interface_offsets_count; ++i)
6183 if ((container_class2->interfaces_packed [i] == container_class1) || (container_class2->interfaces_packed [i]->generic_class && (container_class2->interfaces_packed [i]->generic_class->container_class == container_class1)))
6187 MonoGenericContainer *container;
6189 container = klass->generic_class->container_class->generic_container;
6192 for (i = 0; i < container->type_argc; ++i) {
6193 MonoClass *param1_class = mono_class_from_mono_type (klass->generic_class->context.class_inst->type_argv [i]);
6194 MonoClass *param2_class = mono_class_from_mono_type (oklass->generic_class->context.class_inst->type_argv [i]);
6196 if (param1_class->valuetype != param2_class->valuetype) {
6201 * The _VARIANT and _COVARIANT constants should read _COVARIANT and
6202 * _CONTRAVARIANT, but they are in a public header so we can't fix it.
6204 if (param1_class != param2_class) {
6205 if ((mono_generic_container_get_param_info (container, i)->flags & MONO_GEN_PARAM_VARIANT) && mono_class_is_assignable_from (param1_class, param2_class))
6207 else if (((mono_generic_container_get_param_info (container, i)->flags & MONO_GEN_PARAM_COVARIANT) && mono_class_is_assignable_from (param2_class, param1_class)))
6221 } else if (klass->rank) {
6222 MonoClass *eclass, *eoclass;
6224 if (oklass->rank != klass->rank)
6227 /* vectors vs. one dimensional arrays */
6228 if (oklass->byval_arg.type != klass->byval_arg.type)
6231 eclass = klass->cast_class;
6232 eoclass = oklass->cast_class;
6235 * a is b does not imply a[] is b[] when a is a valuetype, and
6236 * b is a reference type.
6239 if (eoclass->valuetype) {
6240 if ((eclass == mono_defaults.enum_class) ||
6241 (eclass == mono_defaults.enum_class->parent) ||
6242 (eclass == mono_defaults.object_class))
6246 return mono_class_is_assignable_from (klass->cast_class, oklass->cast_class);
6247 } else if (mono_class_is_nullable (klass)) {
6248 if (mono_class_is_nullable (oklass))
6249 return mono_class_is_assignable_from (klass->cast_class, oklass->cast_class);
6251 return mono_class_is_assignable_from (klass->cast_class, oklass);
6252 } else if (klass == mono_defaults.object_class)
6255 return mono_class_has_parent (oklass, klass);
6259 * mono_class_get_cctor:
6260 * @klass: A MonoClass pointer
6262 * Returns: the static constructor of @klass if it exists, NULL otherwise.
6265 mono_class_get_cctor (MonoClass *klass)
6267 MonoCachedClassInfo cached_info;
6269 if (!klass->has_cctor)
6272 if (mono_class_get_cached_class_info (klass, &cached_info))
6273 return mono_get_method (klass->image, cached_info.cctor_token, klass);
6275 if (klass->generic_class && !klass->methods)
6276 return mono_class_get_inflated_method (klass, mono_class_get_cctor (klass->generic_class->container_class));
6278 return mono_class_get_method_from_name_flags (klass, ".cctor", -1, METHOD_ATTRIBUTE_SPECIAL_NAME);
6282 * mono_class_get_finalizer:
6283 * @klass: The MonoClass pointer
6285 * Returns: the finalizer method of @klass if it exists, NULL otherwise.
6288 mono_class_get_finalizer (MonoClass *klass)
6290 MonoCachedClassInfo cached_info;
6293 mono_class_init (klass);
6294 if (!klass->has_finalize)
6297 if (mono_class_get_cached_class_info (klass, &cached_info))
6298 return mono_get_method (cached_info.finalize_image, cached_info.finalize_token, NULL);
6300 mono_class_setup_vtable (klass);
6301 return klass->vtable [finalize_slot];
6306 * mono_class_needs_cctor_run:
6307 * @klass: the MonoClass pointer
6308 * @caller: a MonoMethod describing the caller
6310 * Determines whenever the class has a static constructor and whenever it
6311 * needs to be called when executing CALLER.
6314 mono_class_needs_cctor_run (MonoClass *klass, MonoMethod *caller)
6318 method = mono_class_get_cctor (klass);
6320 return (method == caller) ? FALSE : TRUE;
6326 * mono_class_array_element_size:
6329 * Returns: the number of bytes an element of type @klass
6330 * uses when stored into an array.
6333 mono_class_array_element_size (MonoClass *klass)
6335 MonoType *type = &klass->byval_arg;
6338 switch (type->type) {
6341 case MONO_TYPE_BOOLEAN:
6345 case MONO_TYPE_CHAR:
6354 case MONO_TYPE_CLASS:
6355 case MONO_TYPE_STRING:
6356 case MONO_TYPE_OBJECT:
6357 case MONO_TYPE_SZARRAY:
6358 case MONO_TYPE_ARRAY:
6360 case MONO_TYPE_MVAR:
6361 return sizeof (gpointer);
6366 case MONO_TYPE_VALUETYPE:
6367 if (type->data.klass->enumtype) {
6368 type = mono_class_enum_basetype (type->data.klass);
6369 klass = klass->element_class;
6372 return mono_class_instance_size (klass) - sizeof (MonoObject);
6373 case MONO_TYPE_GENERICINST:
6374 type = &type->data.generic_class->container_class->byval_arg;
6377 case MONO_TYPE_VOID:
6381 g_error ("unknown type 0x%02x in mono_class_array_element_size", type->type);
6387 * mono_array_element_size:
6388 * @ac: pointer to a #MonoArrayClass
6390 * Returns: the size of single array element.
6393 mono_array_element_size (MonoClass *ac)
6395 g_assert (ac->rank);
6396 return ac->sizes.element_size;
6400 mono_ldtoken (MonoImage *image, guint32 token, MonoClass **handle_class,
6401 MonoGenericContext *context)
6403 if (image->dynamic) {
6404 MonoClass *tmp_handle_class;
6405 gpointer obj = mono_lookup_dynamic_token_class (image, token, TRUE, &tmp_handle_class, context);
6407 g_assert (tmp_handle_class);
6409 *handle_class = tmp_handle_class;
6411 if (tmp_handle_class == mono_defaults.typehandle_class)
6412 return &((MonoClass*)obj)->byval_arg;
6417 switch (token & 0xff000000) {
6418 case MONO_TOKEN_TYPE_DEF:
6419 case MONO_TOKEN_TYPE_REF:
6420 case MONO_TOKEN_TYPE_SPEC: {
6423 *handle_class = mono_defaults.typehandle_class;
6424 type = mono_type_get_full (image, token, context);
6427 mono_class_init (mono_class_from_mono_type (type));
6428 /* We return a MonoType* as handle */
6431 case MONO_TOKEN_FIELD_DEF: {
6433 guint32 type = mono_metadata_typedef_from_field (image, mono_metadata_token_index (token));
6435 *handle_class = mono_defaults.fieldhandle_class;
6436 class = mono_class_get_full (image, MONO_TOKEN_TYPE_DEF | type, context);
6439 mono_class_init (class);
6440 return mono_class_get_field (class, token);
6442 case MONO_TOKEN_METHOD_DEF:
6443 case MONO_TOKEN_METHOD_SPEC: {
6445 meth = mono_get_method_full (image, token, NULL, context);
6447 *handle_class = mono_defaults.methodhandle_class;
6450 case MONO_TOKEN_MEMBER_REF: {
6451 guint32 cols [MONO_MEMBERREF_SIZE];
6453 mono_metadata_decode_row (&image->tables [MONO_TABLE_MEMBERREF], mono_metadata_token_index (token) - 1, cols, MONO_MEMBERREF_SIZE);
6454 sig = mono_metadata_blob_heap (image, cols [MONO_MEMBERREF_SIGNATURE]);
6455 mono_metadata_decode_blob_size (sig, &sig);
6456 if (*sig == 0x6) { /* it's a field */
6458 MonoClassField *field;
6459 field = mono_field_from_token (image, token, &klass, context);
6461 *handle_class = mono_defaults.fieldhandle_class;
6465 meth = mono_get_method_full (image, token, NULL, context);
6467 *handle_class = mono_defaults.methodhandle_class;
6472 g_warning ("Unknown token 0x%08x in ldtoken", token);
6479 * This function might need to call runtime functions so it can't be part
6480 * of the metadata library.
6482 static MonoLookupDynamicToken lookup_dynamic = NULL;
6485 mono_install_lookup_dynamic_token (MonoLookupDynamicToken func)
6487 lookup_dynamic = func;
6491 mono_lookup_dynamic_token (MonoImage *image, guint32 token, MonoGenericContext *context)
6493 MonoClass *handle_class;
6495 return lookup_dynamic (image, token, TRUE, &handle_class, context);
6499 mono_lookup_dynamic_token_class (MonoImage *image, guint32 token, gboolean valid_token, MonoClass **handle_class, MonoGenericContext *context)
6501 return lookup_dynamic (image, token, valid_token, handle_class, context);
6504 static MonoGetCachedClassInfo get_cached_class_info = NULL;
6507 mono_install_get_cached_class_info (MonoGetCachedClassInfo func)
6509 get_cached_class_info = func;
6513 mono_class_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res)
6515 if (!get_cached_class_info)
6518 return get_cached_class_info (klass, res);
6522 mono_install_get_class_from_name (MonoGetClassFromName func)
6524 get_class_from_name = func;
6528 mono_class_get_image (MonoClass *klass)
6530 return klass->image;
6534 * mono_class_get_element_class:
6535 * @klass: the MonoClass to act on
6537 * Returns: the element class of an array or an enumeration.
6540 mono_class_get_element_class (MonoClass *klass)
6542 return klass->element_class;
6546 * mono_class_is_valuetype:
6547 * @klass: the MonoClass to act on
6549 * Returns: true if the MonoClass represents a ValueType.
6552 mono_class_is_valuetype (MonoClass *klass)
6554 return klass->valuetype;
6558 * mono_class_is_enum:
6559 * @klass: the MonoClass to act on
6561 * Returns: true if the MonoClass represents an enumeration.
6564 mono_class_is_enum (MonoClass *klass)
6566 return klass->enumtype;
6570 * mono_class_enum_basetype:
6571 * @klass: the MonoClass to act on
6573 * Returns: the underlying type representation for an enumeration.
6576 mono_class_enum_basetype (MonoClass *klass)
6578 if (klass->element_class == klass)
6582 return &klass->element_class->byval_arg;
6586 * mono_class_get_parent
6587 * @klass: the MonoClass to act on
6589 * Returns: the parent class for this class.
6592 mono_class_get_parent (MonoClass *klass)
6594 return klass->parent;
6598 * mono_class_get_nesting_type;
6599 * @klass: the MonoClass to act on
6601 * Returns: the container type where this type is nested or NULL if this type is not a nested type.
6604 mono_class_get_nesting_type (MonoClass *klass)
6606 return klass->nested_in;
6610 * mono_class_get_rank:
6611 * @klass: the MonoClass to act on
6613 * Returns: the rank for the array (the number of dimensions).
6616 mono_class_get_rank (MonoClass *klass)
6622 * mono_class_get_flags:
6623 * @klass: the MonoClass to act on
6625 * The type flags from the TypeDef table from the metadata.
6626 * see the TYPE_ATTRIBUTE_* definitions on tabledefs.h for the
6629 * Returns: the flags from the TypeDef table.
6632 mono_class_get_flags (MonoClass *klass)
6634 return klass->flags;
6638 * mono_class_get_name
6639 * @klass: the MonoClass to act on
6641 * Returns: the name of the class.
6644 mono_class_get_name (MonoClass *klass)
6650 * mono_class_get_namespace:
6651 * @klass: the MonoClass to act on
6653 * Returns: the namespace of the class.
6656 mono_class_get_namespace (MonoClass *klass)
6658 return klass->name_space;
6662 * mono_class_get_type:
6663 * @klass: the MonoClass to act on
6665 * This method returns the internal Type representation for the class.
6667 * Returns: the MonoType from the class.
6670 mono_class_get_type (MonoClass *klass)
6672 return &klass->byval_arg;
6676 * mono_class_get_type_token
6677 * @klass: the MonoClass to act on
6679 * This method returns type token for the class.
6681 * Returns: the type token for the class.
6684 mono_class_get_type_token (MonoClass *klass)
6686 return klass->type_token;
6690 * mono_class_get_byref_type:
6691 * @klass: the MonoClass to act on
6696 mono_class_get_byref_type (MonoClass *klass)
6698 return &klass->this_arg;
6702 * mono_class_num_fields:
6703 * @klass: the MonoClass to act on
6705 * Returns: the number of static and instance fields in the class.
6708 mono_class_num_fields (MonoClass *klass)
6710 return klass->field.count;
6714 * mono_class_num_methods:
6715 * @klass: the MonoClass to act on
6717 * Returns: the number of methods in the class.
6720 mono_class_num_methods (MonoClass *klass)
6722 return klass->method.count;
6726 * mono_class_num_properties
6727 * @klass: the MonoClass to act on
6729 * Returns: the number of properties in the class.
6732 mono_class_num_properties (MonoClass *klass)
6734 mono_class_setup_properties (klass);
6736 return klass->ext->property.count;
6740 * mono_class_num_events:
6741 * @klass: the MonoClass to act on
6743 * Returns: the number of events in the class.
6746 mono_class_num_events (MonoClass *klass)
6748 mono_class_setup_events (klass);
6750 return klass->ext->event.count;
6754 * mono_class_get_fields:
6755 * @klass: the MonoClass to act on
6757 * This routine is an iterator routine for retrieving the fields in a class.
6759 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6760 * iterate over all of the elements. When no more values are
6761 * available, the return value is NULL.
6763 * Returns: a @MonoClassField* on each iteration, or NULL when no more fields are available.
6766 mono_class_get_fields (MonoClass* klass, gpointer *iter)
6768 MonoClassField* field;
6772 mono_class_setup_fields_locking (klass);
6773 if (klass->exception_type)
6775 /* start from the first */
6776 if (klass->field.count) {
6777 return *iter = &klass->fields [0];
6785 if (field < &klass->fields [klass->field.count]) {
6786 return *iter = field;
6792 * mono_class_get_methods
6793 * @klass: the MonoClass to act on
6795 * This routine is an iterator routine for retrieving the fields in a class.
6797 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6798 * iterate over all of the elements. When no more values are
6799 * available, the return value is NULL.
6801 * Returns: a MonoMethod on each iteration or NULL when no more methods are available.
6804 mono_class_get_methods (MonoClass* klass, gpointer *iter)
6806 MonoMethod** method;
6810 mono_class_init (klass);
6812 mono_class_setup_methods (klass);
6813 /* start from the first */
6814 if (klass->method.count) {
6815 *iter = &klass->methods [0];
6816 return klass->methods [0];
6824 if (method < &klass->methods [klass->method.count]) {
6832 * mono_class_get_virtual_methods:
6834 * Iterate over the virtual methods of KLASS.
6836 * LOCKING: Assumes the loader lock is held (because of the klass->methods check).
6839 mono_class_get_virtual_methods (MonoClass* klass, gpointer *iter)
6841 MonoMethod** method;
6844 if (klass->methods || !MONO_CLASS_HAS_STATIC_METADATA (klass) || mono_debug_using_mono_debugger ()) {
6846 mono_class_setup_methods (klass);
6847 /* start from the first */
6848 method = &klass->methods [0];
6853 while (method < &klass->methods [klass->method.count]) {
6854 if (((*method)->flags & METHOD_ATTRIBUTE_VIRTUAL))
6858 if (method < &klass->methods [klass->method.count]) {
6865 /* Search directly in metadata to avoid calling setup_methods () */
6866 MonoMethod *res = NULL;
6872 start_index = GPOINTER_TO_UINT (*iter);
6875 for (i = start_index; i < klass->method.count; ++i) {
6876 guint32 cols [MONO_METHOD_SIZE];
6878 /* class->method.first points into the methodptr table */
6879 mono_metadata_decode_table_row (klass->image, MONO_TABLE_METHOD, klass->method.first + i, cols, MONO_METHOD_SIZE);
6881 if (cols [MONO_METHOD_FLAGS] & METHOD_ATTRIBUTE_VIRTUAL)
6885 if (i < klass->method.count) {
6886 res = mono_get_method (klass->image, MONO_TOKEN_METHOD_DEF | (klass->method.first + i + 1), klass);
6887 /* Add 1 here so the if (*iter) check fails */
6888 *iter = GUINT_TO_POINTER (i + 1);
6897 * mono_class_get_properties:
6898 * @klass: the MonoClass to act on
6900 * This routine is an iterator routine for retrieving the properties in a class.
6902 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6903 * iterate over all of the elements. When no more values are
6904 * available, the return value is NULL.
6906 * Returns: a @MonoProperty* on each invocation, or NULL when no more are available.
6909 mono_class_get_properties (MonoClass* klass, gpointer *iter)
6911 MonoProperty* property;
6915 mono_class_init (klass);
6917 mono_class_setup_properties (klass);
6918 /* start from the first */
6919 if (klass->ext->property.count) {
6920 return *iter = &klass->ext->properties [0];
6928 if (property < &klass->ext->properties [klass->ext->property.count]) {
6929 return *iter = property;
6935 * mono_class_get_events:
6936 * @klass: the MonoClass to act on
6938 * This routine is an iterator routine for retrieving the properties in a class.
6940 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6941 * iterate over all of the elements. When no more values are
6942 * available, the return value is NULL.
6944 * Returns: a @MonoEvent* on each invocation, or NULL when no more are available.
6947 mono_class_get_events (MonoClass* klass, gpointer *iter)
6953 mono_class_init (klass);
6955 mono_class_setup_events (klass);
6956 /* start from the first */
6957 if (klass->ext->event.count) {
6958 return *iter = &klass->ext->events [0];
6966 if (event < &klass->ext->events [klass->ext->event.count]) {
6967 return *iter = event;
6973 * mono_class_get_interfaces
6974 * @klass: the MonoClass to act on
6976 * This routine is an iterator routine for retrieving the interfaces implemented by this class.
6978 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6979 * iterate over all of the elements. When no more values are
6980 * available, the return value is NULL.
6982 * Returns: a @Monoclass* on each invocation, or NULL when no more are available.
6985 mono_class_get_interfaces (MonoClass* klass, gpointer *iter)
6992 mono_class_init (klass);
6993 if (!klass->interfaces_inited)
6994 mono_class_setup_interfaces (klass);
6995 /* start from the first */
6996 if (klass->interface_count) {
6997 *iter = &klass->interfaces [0];
6998 return klass->interfaces [0];
7006 if (iface < &klass->interfaces [klass->interface_count]) {
7014 * mono_class_get_nested_types
7015 * @klass: the MonoClass to act on
7017 * This routine is an iterator routine for retrieving the nested types of a class.
7018 * This works only if @klass is non-generic, or a generic type definition.
7020 * You must pass a gpointer that points to zero and is treated as an opaque handle to
7021 * iterate over all of the elements. When no more values are
7022 * available, the return value is NULL.
7024 * Returns: a @Monoclass* on each invocation, or NULL when no more are available.
7027 mono_class_get_nested_types (MonoClass* klass, gpointer *iter)
7035 mono_class_init (klass);
7036 if (!klass->nested_classes_inited) {
7037 if (!klass->type_token)
7038 klass->nested_classes_inited = TRUE;
7039 mono_loader_lock ();
7040 if (!klass->nested_classes_inited) {
7041 i = mono_metadata_nesting_typedef (klass->image, klass->type_token, 1);
7044 guint32 cols [MONO_NESTED_CLASS_SIZE];
7045 mono_metadata_decode_row (&klass->image->tables [MONO_TABLE_NESTEDCLASS], i - 1, cols, MONO_NESTED_CLASS_SIZE);
7046 nclass = mono_class_create_from_typedef (klass->image, MONO_TOKEN_TYPE_DEF | cols [MONO_NESTED_CLASS_NESTED]);
7047 mono_class_alloc_ext (klass);
7048 klass->ext->nested_classes = g_list_prepend_image (klass->image, klass->ext->nested_classes, nclass);
7050 i = mono_metadata_nesting_typedef (klass->image, klass->type_token, i + 1);
7053 mono_memory_barrier ();
7054 klass->nested_classes_inited = TRUE;
7055 mono_loader_unlock ();
7059 /* start from the first */
7060 if (klass->ext && klass->ext->nested_classes) {
7061 *iter = klass->ext->nested_classes;
7062 return klass->ext->nested_classes->data;
7064 /* no nested types */
7078 * mono_field_get_name:
7079 * @field: the MonoClassField to act on
7081 * Returns: the name of the field.
7084 mono_field_get_name (MonoClassField *field)
7090 * mono_field_get_type:
7091 * @field: the MonoClassField to act on
7093 * Returns: MonoType of the field.
7096 mono_field_get_type (MonoClassField *field)
7102 * mono_field_get_parent:
7103 * @field: the MonoClassField to act on
7105 * Returns: MonoClass where the field was defined.
7108 mono_field_get_parent (MonoClassField *field)
7110 return field->parent;
7114 * mono_field_get_flags;
7115 * @field: the MonoClassField to act on
7117 * The metadata flags for a field are encoded using the
7118 * FIELD_ATTRIBUTE_* constants. See the tabledefs.h file for details.
7120 * Returns: the flags for the field.
7123 mono_field_get_flags (MonoClassField *field)
7125 return field->type->attrs;
7129 * mono_field_get_offset;
7130 * @field: the MonoClassField to act on
7132 * Returns: the field offset.
7135 mono_field_get_offset (MonoClassField *field)
7137 return field->offset;
7141 mono_field_get_rva (MonoClassField *field)
7145 MonoClass *klass = field->parent;
7147 g_assert (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_RVA);
7149 if (!klass->ext || !klass->ext->field_def_values) {
7150 mono_loader_lock ();
7151 mono_class_alloc_ext (klass);
7152 if (!klass->ext->field_def_values)
7153 klass->ext->field_def_values = mono_image_alloc0 (klass->image, sizeof (MonoFieldDefaultValue) * klass->field.count);
7154 mono_loader_unlock ();
7157 field_index = mono_field_get_index (field);
7159 if (!klass->ext->field_def_values [field_index].data && !klass->image->dynamic) {
7160 mono_metadata_field_info (field->parent->image, klass->field.first + field_index, NULL, &rva, NULL);
7162 g_warning ("field %s in %s should have RVA data, but hasn't", mono_field_get_name (field), field->parent->name);
7163 klass->ext->field_def_values [field_index].data = mono_image_rva_map (field->parent->image, rva);
7166 return klass->ext->field_def_values [field_index].data;
7170 * mono_field_get_data;
7171 * @field: the MonoClassField to act on
7173 * Returns: pointer to the metadata constant value or to the field
7174 * data if it has an RVA flag.
7177 mono_field_get_data (MonoClassField *field)
7179 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_DEFAULT) {
7180 MonoTypeEnum def_type;
7182 return mono_class_get_field_default_value (field, &def_type);
7183 } else if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_RVA) {
7184 return mono_field_get_rva (field);
7191 * mono_property_get_name:
7192 * @prop: the MonoProperty to act on
7194 * Returns: the name of the property
7197 mono_property_get_name (MonoProperty *prop)
7203 * mono_property_get_set_method
7204 * @prop: the MonoProperty to act on.
7206 * Returns: the setter method of the property (A MonoMethod)
7209 mono_property_get_set_method (MonoProperty *prop)
7215 * mono_property_get_get_method
7216 * @prop: the MonoProperty to act on.
7218 * Returns: the setter method of the property (A MonoMethod)
7221 mono_property_get_get_method (MonoProperty *prop)
7227 * mono_property_get_parent:
7228 * @prop: the MonoProperty to act on.
7230 * Returns: the MonoClass where the property was defined.
7233 mono_property_get_parent (MonoProperty *prop)
7235 return prop->parent;
7239 * mono_property_get_flags:
7240 * @prop: the MonoProperty to act on.
7242 * The metadata flags for a property are encoded using the
7243 * PROPERTY_ATTRIBUTE_* constants. See the tabledefs.h file for details.
7245 * Returns: the flags for the property.
7248 mono_property_get_flags (MonoProperty *prop)
7254 * mono_event_get_name:
7255 * @event: the MonoEvent to act on
7257 * Returns: the name of the event.
7260 mono_event_get_name (MonoEvent *event)
7266 * mono_event_get_add_method:
7267 * @event: The MonoEvent to act on.
7269 * Returns: the @add' method for the event (a MonoMethod).
7272 mono_event_get_add_method (MonoEvent *event)
7278 * mono_event_get_remove_method:
7279 * @event: The MonoEvent to act on.
7281 * Returns: the @remove method for the event (a MonoMethod).
7284 mono_event_get_remove_method (MonoEvent *event)
7286 return event->remove;
7290 * mono_event_get_raise_method:
7291 * @event: The MonoEvent to act on.
7293 * Returns: the @raise method for the event (a MonoMethod).
7296 mono_event_get_raise_method (MonoEvent *event)
7298 return event->raise;
7302 * mono_event_get_parent:
7303 * @event: the MonoEvent to act on.
7305 * Returns: the MonoClass where the event is defined.
7308 mono_event_get_parent (MonoEvent *event)
7310 return event->parent;
7314 * mono_event_get_flags
7315 * @event: the MonoEvent to act on.
7317 * The metadata flags for an event are encoded using the
7318 * EVENT_* constants. See the tabledefs.h file for details.
7320 * Returns: the flags for the event.
7323 mono_event_get_flags (MonoEvent *event)
7325 return event->attrs;
7329 * mono_class_get_method_from_name:
7330 * @klass: where to look for the method
7331 * @name_space: name of the method
7332 * @param_count: number of parameters. -1 for any number.
7334 * Obtains a MonoMethod with a given name and number of parameters.
7335 * It only works if there are no multiple signatures for any given method name.
7338 mono_class_get_method_from_name (MonoClass *klass, const char *name, int param_count)
7340 return mono_class_get_method_from_name_flags (klass, name, param_count, 0);
7344 find_method_in_metadata (MonoClass *klass, const char *name, int param_count, int flags)
7346 MonoMethod *res = NULL;
7349 /* Search directly in the metadata to avoid calling setup_methods () */
7350 for (i = 0; i < klass->method.count; ++i) {
7351 guint32 cols [MONO_METHOD_SIZE];
7354 /* class->method.first points into the methodptr table */
7355 mono_metadata_decode_table_row (klass->image, MONO_TABLE_METHOD, klass->method.first + i, cols, MONO_METHOD_SIZE);
7357 if (!strcmp (mono_metadata_string_heap (klass->image, cols [MONO_METHOD_NAME]), name)) {
7358 method = mono_get_method (klass->image, MONO_TOKEN_METHOD_DEF | (klass->method.first + i + 1), klass);
7359 if ((param_count == -1) || mono_method_signature (method)->param_count == param_count) {
7370 * mono_class_get_method_from_name_flags:
7371 * @klass: where to look for the method
7372 * @name_space: name of the method
7373 * @param_count: number of parameters. -1 for any number.
7374 * @flags: flags which must be set in the method
7376 * Obtains a MonoMethod with a given name and number of parameters.
7377 * It only works if there are no multiple signatures for any given method name.
7380 mono_class_get_method_from_name_flags (MonoClass *klass, const char *name, int param_count, int flags)
7382 MonoMethod *res = NULL;
7385 mono_class_init (klass);
7387 if (klass->generic_class && !klass->methods) {
7388 res = mono_class_get_method_from_name_flags (klass->generic_class->container_class, name, param_count, flags);
7390 res = mono_class_inflate_generic_method_full (res, klass, mono_class_get_context (klass));
7394 if (klass->methods || !MONO_CLASS_HAS_STATIC_METADATA (klass)) {
7395 mono_class_setup_methods (klass);
7396 for (i = 0; i < klass->method.count; ++i) {
7397 MonoMethod *method = klass->methods [i];
7399 if (method->name[0] == name [0] &&
7400 !strcmp (name, method->name) &&
7401 (param_count == -1 || mono_method_signature (method)->param_count == param_count) &&
7402 ((method->flags & flags) == flags)) {
7409 res = find_method_in_metadata (klass, name, param_count, flags);
7416 * mono_class_set_failure:
7417 * @klass: class in which the failure was detected
7418 * @ex_type: the kind of exception/error to be thrown (later)
7419 * @ex_data: exception data (specific to each type of exception/error)
7421 * Keep a detected failure informations in the class for later processing.
7422 * Note that only the first failure is kept.
7424 * LOCKING: Acquires the loader lock.
7427 mono_class_set_failure (MonoClass *klass, guint32 ex_type, void *ex_data)
7429 if (klass->exception_type)
7432 mono_loader_lock ();
7433 klass->exception_type = ex_type;
7435 mono_image_property_insert (klass->image, klass, MONO_CLASS_PROP_EXCEPTION_DATA, ex_data);
7436 mono_loader_unlock ();
7442 * mono_class_get_exception_data:
7444 * Return the exception_data property of KLASS.
7446 * LOCKING: Acquires the loader lock.
7449 mono_class_get_exception_data (MonoClass *klass)
7451 return mono_image_property_lookup (klass->image, klass, MONO_CLASS_PROP_EXCEPTION_DATA);
7455 * mono_classes_init:
7457 * Initialize the resources used by this module.
7460 mono_classes_init (void)
7462 mono_counters_register ("Inflated methods size",
7463 MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &inflated_methods_size);
7464 mono_counters_register ("Inflated classes",
7465 MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &inflated_classes);
7466 mono_counters_register ("Inflated classes size",
7467 MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &inflated_classes_size);
7468 mono_counters_register ("MonoClass size",
7469 MONO_COUNTER_METADATA | MONO_COUNTER_INT, &classes_size);
7470 mono_counters_register ("MonoClassExt size",
7471 MONO_COUNTER_METADATA | MONO_COUNTER_INT, &class_ext_size);
7475 * mono_classes_cleanup:
7477 * Free the resources used by this module.
7480 mono_classes_cleanup (void)
7482 if (global_interface_bitset)
7483 mono_bitset_free (global_interface_bitset);
7487 * mono_class_get_exception_for_failure:
7488 * @klass: class in which the failure was detected
7490 * Return a constructed MonoException than the caller can then throw
7491 * using mono_raise_exception - or NULL if no failure is present (or
7492 * doesn't result in an exception).
7495 mono_class_get_exception_for_failure (MonoClass *klass)
7497 gpointer exception_data = mono_class_get_exception_data (klass);
7499 switch (klass->exception_type) {
7500 case MONO_EXCEPTION_SECURITY_INHERITANCEDEMAND: {
7501 MonoDomain *domain = mono_domain_get ();
7502 MonoSecurityManager* secman = mono_security_manager_get_methods ();
7503 MonoMethod *method = exception_data;
7504 guint32 error = (method) ? MONO_METADATA_INHERITANCEDEMAND_METHOD : MONO_METADATA_INHERITANCEDEMAND_CLASS;
7505 MonoObject *exc = NULL;
7509 args [1] = mono_assembly_get_object (domain, mono_image_get_assembly (klass->image));
7510 args [2] = mono_type_get_object (domain, &klass->byval_arg);
7511 args [3] = (method) ? mono_method_get_object (domain, method, NULL) : NULL;
7513 mono_runtime_invoke (secman->inheritsecurityexception, NULL, args, &exc);
7514 return (MonoException*) exc;
7516 case MONO_EXCEPTION_TYPE_LOAD: {
7519 char *str = mono_type_get_full_name (klass);
7520 char *astr = klass->image->assembly? mono_stringify_assembly_name (&klass->image->assembly->aname): NULL;
7521 name = mono_string_new (mono_domain_get (), str);
7523 ex = mono_get_exception_type_load (name, astr);
7527 case MONO_EXCEPTION_MISSING_METHOD: {
7528 char *class_name = exception_data;
7529 char *assembly_name = class_name + strlen (class_name) + 1;
7531 return mono_get_exception_missing_method (class_name, assembly_name);
7533 case MONO_EXCEPTION_MISSING_FIELD: {
7534 char *class_name = exception_data;
7535 char *member_name = class_name + strlen (class_name) + 1;
7537 return mono_get_exception_missing_field (class_name, member_name);
7539 case MONO_EXCEPTION_FILE_NOT_FOUND: {
7540 char *msg_format = exception_data;
7541 char *assembly_name = msg_format + strlen (msg_format) + 1;
7542 char *msg = g_strdup_printf (msg_format, assembly_name);
7545 ex = mono_get_exception_file_not_found2 (msg, mono_string_new (mono_domain_get (), assembly_name));
7551 case MONO_EXCEPTION_BAD_IMAGE: {
7552 return mono_get_exception_bad_image_format (exception_data);
7555 MonoLoaderError *error;
7558 error = mono_loader_get_last_error ();
7560 ex = mono_loader_error_prepare_exception (error);
7564 /* TODO - handle other class related failures */
7571 is_nesting_type (MonoClass *outer_klass, MonoClass *inner_klass)
7573 outer_klass = mono_class_get_generic_type_definition (outer_klass);
7574 inner_klass = mono_class_get_generic_type_definition (inner_klass);
7576 if (outer_klass == inner_klass)
7578 inner_klass = inner_klass->nested_in;
7579 } while (inner_klass);
7584 mono_class_get_generic_type_definition (MonoClass *klass)
7586 return klass->generic_class ? klass->generic_class->container_class : klass;
7590 * Check if @klass is a subtype of @parent ignoring generic instantiations.
7592 * Generic instantiations are ignored for all super types of @klass.
7594 * Visibility checks ignoring generic instantiations.
7597 mono_class_has_parent_and_ignore_generics (MonoClass *klass, MonoClass *parent)
7600 klass = mono_class_get_generic_type_definition (klass);
7601 parent = mono_class_get_generic_type_definition (parent);
7603 for (i = 0; i < klass->idepth; ++i) {
7604 if (parent == mono_class_get_generic_type_definition (klass->supertypes [i]))
7610 * Subtype can only access parent members with family protection if the site object
7611 * is subclass of Subtype. For example:
7612 * class A { protected int x; }
7614 * void valid_access () {
7618 * void invalid_access () {
7625 is_valid_family_access (MonoClass *access_klass, MonoClass *member_klass, MonoClass *context_klass)
7627 if (!mono_class_has_parent_and_ignore_generics (access_klass, member_klass))
7630 if (context_klass == NULL)
7632 /*if access_klass is not member_klass context_klass must be type compat*/
7633 if (access_klass != member_klass && !mono_class_has_parent_and_ignore_generics (context_klass, access_klass))
7639 can_access_internals (MonoAssembly *accessing, MonoAssembly* accessed)
7642 if (accessing == accessed)
7644 if (!accessed || !accessing)
7646 mono_assembly_load_friends (accessed);
7647 for (tmp = accessed->friend_assembly_names; tmp; tmp = tmp->next) {
7648 MonoAssemblyName *friend = tmp->data;
7649 /* Be conservative with checks */
7652 if (strcmp (accessing->aname.name, friend->name))
7654 if (friend->public_key_token [0]) {
7655 if (!accessing->aname.public_key_token [0])
7657 if (!mono_public_tokens_are_equal (friend->public_key_token, accessing->aname.public_key_token))
7666 * If klass is a generic type or if it is derived from a generic type, return the
7667 * MonoClass of the generic definition
7668 * Returns NULL if not found
7671 get_generic_definition_class (MonoClass *klass)
7674 if (klass->generic_class && klass->generic_class->container_class)
7675 return klass->generic_class->container_class;
7676 klass = klass->parent;
7682 can_access_instantiation (MonoClass *access_klass, MonoGenericInst *ginst)
7685 for (i = 0; i < ginst->type_argc; ++i) {
7686 MonoType *type = ginst->type_argv[i];
7687 switch (type->type) {
7688 case MONO_TYPE_SZARRAY:
7689 if (!can_access_type (access_klass, type->data.klass))
7692 case MONO_TYPE_ARRAY:
7693 if (!can_access_type (access_klass, type->data.array->eklass))
7697 if (!can_access_type (access_klass, mono_class_from_mono_type (type->data.type)))
7700 case MONO_TYPE_CLASS:
7701 case MONO_TYPE_VALUETYPE:
7702 case MONO_TYPE_GENERICINST:
7703 if (!can_access_type (access_klass, mono_class_from_mono_type (type)))
7711 can_access_type (MonoClass *access_klass, MonoClass *member_klass)
7715 if (access_klass->element_class && !access_klass->enumtype)
7716 access_klass = access_klass->element_class;
7718 if (member_klass->element_class && !member_klass->enumtype)
7719 member_klass = member_klass->element_class;
7721 access_level = member_klass->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK;
7723 if (member_klass->byval_arg.type == MONO_TYPE_VAR || member_klass->byval_arg.type == MONO_TYPE_MVAR)
7726 if (member_klass->generic_class && !can_access_instantiation (access_klass, member_klass->generic_class->context.class_inst))
7729 if (is_nesting_type (access_klass, member_klass) || (access_klass->nested_in && is_nesting_type (access_klass->nested_in, member_klass)))
7732 if (member_klass->nested_in && !can_access_type (access_klass, member_klass->nested_in))
7735 /*Non nested type with nested visibility. We just fail it.*/
7736 if (access_level >= TYPE_ATTRIBUTE_NESTED_PRIVATE && access_level <= TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM && member_klass->nested_in == NULL)
7739 switch (access_level) {
7740 case TYPE_ATTRIBUTE_NOT_PUBLIC:
7741 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
7743 case TYPE_ATTRIBUTE_PUBLIC:
7746 case TYPE_ATTRIBUTE_NESTED_PUBLIC:
7749 case TYPE_ATTRIBUTE_NESTED_PRIVATE:
7750 return is_nesting_type (member_klass, access_klass);
7752 case TYPE_ATTRIBUTE_NESTED_FAMILY:
7753 return mono_class_has_parent_and_ignore_generics (access_klass, member_klass->nested_in);
7755 case TYPE_ATTRIBUTE_NESTED_ASSEMBLY:
7756 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
7758 case TYPE_ATTRIBUTE_NESTED_FAM_AND_ASSEM:
7759 return can_access_internals (access_klass->image->assembly, member_klass->nested_in->image->assembly) &&
7760 mono_class_has_parent_and_ignore_generics (access_klass, member_klass->nested_in);
7762 case TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM:
7763 return can_access_internals (access_klass->image->assembly, member_klass->nested_in->image->assembly) ||
7764 mono_class_has_parent_and_ignore_generics (access_klass, member_klass->nested_in);
7769 /* FIXME: check visibility of type, too */
7771 can_access_member (MonoClass *access_klass, MonoClass *member_klass, MonoClass* context_klass, int access_level)
7773 MonoClass *member_generic_def;
7774 if (((access_klass->generic_class && access_klass->generic_class->container_class) ||
7775 access_klass->generic_container) &&
7776 (member_generic_def = get_generic_definition_class (member_klass))) {
7777 MonoClass *access_container;
7779 if (access_klass->generic_container)
7780 access_container = access_klass;
7782 access_container = access_klass->generic_class->container_class;
7784 if (can_access_member (access_container, member_generic_def, context_klass, access_level))
7788 /* Partition I 8.5.3.2 */
7789 /* the access level values are the same for fields and methods */
7790 switch (access_level) {
7791 case FIELD_ATTRIBUTE_COMPILER_CONTROLLED:
7792 /* same compilation unit */
7793 return access_klass->image == member_klass->image;
7794 case FIELD_ATTRIBUTE_PRIVATE:
7795 return access_klass == member_klass;
7796 case FIELD_ATTRIBUTE_FAM_AND_ASSEM:
7797 if (is_valid_family_access (access_klass, member_klass, context_klass) &&
7798 can_access_internals (access_klass->image->assembly, member_klass->image->assembly))
7801 case FIELD_ATTRIBUTE_ASSEMBLY:
7802 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
7803 case FIELD_ATTRIBUTE_FAMILY:
7804 if (is_valid_family_access (access_klass, member_klass, context_klass))
7807 case FIELD_ATTRIBUTE_FAM_OR_ASSEM:
7808 if (is_valid_family_access (access_klass, member_klass, context_klass))
7810 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
7811 case FIELD_ATTRIBUTE_PUBLIC:
7818 mono_method_can_access_field (MonoMethod *method, MonoClassField *field)
7820 /* FIXME: check all overlapping fields */
7821 int can = can_access_member (method->klass, field->parent, NULL, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
7823 MonoClass *nested = method->klass->nested_in;
7825 can = can_access_member (nested, field->parent, NULL, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
7828 nested = nested->nested_in;
7835 mono_method_can_access_method (MonoMethod *method, MonoMethod *called)
7837 int can = can_access_member (method->klass, called->klass, NULL, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
7839 MonoClass *nested = method->klass->nested_in;
7841 can = can_access_member (nested, called->klass, NULL, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
7844 nested = nested->nested_in;
7849 * with generics calls to explicit interface implementations can be expressed
7850 * directly: the method is private, but we must allow it. This may be opening
7851 * a hole or the generics code should handle this differently.
7852 * Maybe just ensure the interface type is public.
7854 if ((called->flags & METHOD_ATTRIBUTE_VIRTUAL) && (called->flags & METHOD_ATTRIBUTE_FINAL))
7860 * mono_method_can_access_method_full:
7861 * @method: The caller method
7862 * @called: The called method
7863 * @context_klass: The static type on stack of the owner @called object used
7865 * This function must be used with instance calls, as they have more strict family accessibility.
7866 * It can be used with static methods, but context_klass should be NULL.
7868 * Returns: TRUE if caller have proper visibility and acessibility to @called
7871 mono_method_can_access_method_full (MonoMethod *method, MonoMethod *called, MonoClass *context_klass)
7873 MonoClass *access_class = method->klass;
7874 MonoClass *member_class = called->klass;
7875 int can = can_access_member (access_class, member_class, context_klass, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
7877 MonoClass *nested = access_class->nested_in;
7879 can = can_access_member (nested, member_class, context_klass, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
7882 nested = nested->nested_in;
7889 if (!can_access_type (access_class, member_class) && (!access_class->nested_in || !can_access_type (access_class->nested_in, member_class)))
7892 if (called->is_inflated) {
7893 MonoMethodInflated * infl = (MonoMethodInflated*)called;
7894 if (infl->context.method_inst && !can_access_instantiation (access_class, infl->context.method_inst))
7903 * mono_method_can_access_field_full:
7904 * @method: The caller method
7905 * @field: The accessed field
7906 * @context_klass: The static type on stack of the owner @field object used
7908 * This function must be used with instance fields, as they have more strict family accessibility.
7909 * It can be used with static fields, but context_klass should be NULL.
7911 * Returns: TRUE if caller have proper visibility and acessibility to @field
7914 mono_method_can_access_field_full (MonoMethod *method, MonoClassField *field, MonoClass *context_klass)
7916 MonoClass *access_class = method->klass;
7917 MonoClass *member_class = field->parent;
7918 /* FIXME: check all overlapping fields */
7919 int can = can_access_member (access_class, member_class, context_klass, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
7921 MonoClass *nested = access_class->nested_in;
7923 can = can_access_member (nested, member_class, context_klass, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
7926 nested = nested->nested_in;
7933 if (!can_access_type (access_class, member_class) && (!access_class->nested_in || !can_access_type (access_class->nested_in, member_class)))
7939 * mono_type_is_valid_enum_basetype:
7940 * @type: The MonoType to check
7942 * Returns: TRUE if the type can be used as the basetype of an enum
7944 gboolean mono_type_is_valid_enum_basetype (MonoType * type) {
7945 switch (type->type) {
7948 case MONO_TYPE_BOOLEAN:
7951 case MONO_TYPE_CHAR:
7964 * mono_class_is_valid_enum:
7965 * @klass: An enum class to be validated
7967 * This method verify the required properties an enum should have.
7969 * Returns: TRUE if the informed enum class is valid
7971 * FIXME: TypeBuilder enums are allowed to implement interfaces, but since they cannot have methods, only empty interfaces are possible
7972 * FIXME: enum types are not allowed to have a cctor, but mono_reflection_create_runtime_class sets has_cctor to 1 for all types
7973 * FIXME: TypeBuilder enums can have any kind of static fields, but the spec is very explicit about that (P II 14.3)
7975 gboolean mono_class_is_valid_enum (MonoClass *klass) {
7976 MonoClassField * field;
7977 gpointer iter = NULL;
7978 gboolean found_base_field = FALSE;
7980 g_assert (klass->enumtype);
7981 /* we cannot test against mono_defaults.enum_class, or mcs won't be able to compile the System namespace*/
7982 if (!klass->parent || strcmp (klass->parent->name, "Enum") || strcmp (klass->parent->name_space, "System") ) {
7986 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) != TYPE_ATTRIBUTE_AUTO_LAYOUT)
7989 while ((field = mono_class_get_fields (klass, &iter))) {
7990 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
7991 if (found_base_field)
7993 found_base_field = TRUE;
7994 if (!mono_type_is_valid_enum_basetype (field->type))
7999 if (!found_base_field)
8002 if (klass->method.count > 0)
8009 mono_generic_class_is_generic_type_definition (MonoGenericClass *gklass)
8011 return gklass->context.class_inst == gklass->container_class->generic_container->context.class_inst;
8014 static gboolean gshared_supported;
8017 mono_set_generic_sharing_supported (gboolean supported)
8019 gshared_supported = supported;
8023 * mono_class_generic_sharing_enabled:
8026 * Returns whether generic sharing is enabled for class.
8028 * This is a stop-gap measure to slowly introduce generic sharing
8029 * until we have all the issues sorted out, at which time this
8030 * function will disappear and generic sharing will always be enabled.
8033 mono_class_generic_sharing_enabled (MonoClass *class)
8035 static int generic_sharing = MONO_GENERIC_SHARING_NONE;
8036 static gboolean inited = FALSE;
8041 if (gshared_supported)
8042 generic_sharing = MONO_GENERIC_SHARING_ALL;
8044 generic_sharing = MONO_GENERIC_SHARING_NONE;
8046 if ((option = g_getenv ("MONO_GENERIC_SHARING"))) {
8047 if (strcmp (option, "corlib") == 0)
8048 generic_sharing = MONO_GENERIC_SHARING_CORLIB;
8049 else if (strcmp (option, "collections") == 0)
8050 generic_sharing = MONO_GENERIC_SHARING_COLLECTIONS;
8051 else if (strcmp (option, "all") == 0)
8052 generic_sharing = MONO_GENERIC_SHARING_ALL;
8053 else if (strcmp (option, "none") == 0)
8054 generic_sharing = MONO_GENERIC_SHARING_NONE;
8056 g_warning ("Unknown generic sharing option `%s'.", option);
8059 if (!gshared_supported)
8060 generic_sharing = MONO_GENERIC_SHARING_NONE;
8065 switch (generic_sharing) {
8066 case MONO_GENERIC_SHARING_NONE:
8068 case MONO_GENERIC_SHARING_ALL:
8070 case MONO_GENERIC_SHARING_CORLIB :
8071 return class->image == mono_defaults.corlib;
8072 case MONO_GENERIC_SHARING_COLLECTIONS:
8073 if (class->image != mono_defaults.corlib)
8075 while (class->nested_in)
8076 class = class->nested_in;
8077 return g_str_has_prefix (class->name_space, "System.Collections.Generic");
8079 g_assert_not_reached ();
8084 * mono_class_setup_interface_id:
8086 * Initializes MonoClass::interface_id if required.
8088 * LOCKING: Acquires the loader lock.
8091 mono_class_setup_interface_id (MonoClass *class)
8093 mono_loader_lock ();
8094 if (MONO_CLASS_IS_INTERFACE (class) && !class->interface_id)
8095 class->interface_id = mono_get_unique_iid (class);
8096 mono_loader_unlock ();
8100 * mono_class_alloc_ext:
8102 * Allocate klass->ext if not already done.
8103 * LOCKING: Assumes the loader lock is held.
8106 mono_class_alloc_ext (MonoClass *klass)
8109 if (klass->generic_class) {
8110 klass->ext = g_new0 (MonoClassExt, 1);
8112 klass->ext = mono_image_alloc0 (klass->image, sizeof (MonoClassExt));
8114 class_ext_size += sizeof (MonoClassExt);
8119 * mono_class_setup_interfaces:
8121 * Initialize class->interfaces/interfaces_count.
8122 * LOCKING: Acquires the loader lock.
8125 mono_class_setup_interfaces (MonoClass *klass)
8129 if (klass->interfaces_inited)
8132 mono_loader_lock ();
8134 if (klass->interfaces_inited) {
8135 mono_loader_unlock ();
8139 if (klass->rank == 1 && klass->byval_arg.type != MONO_TYPE_ARRAY && mono_defaults.generic_ilist_class) {
8142 /* generic IList, ICollection, IEnumerable */
8143 klass->interface_count = 1;
8144 klass->interfaces = mono_image_alloc0 (klass->image, sizeof (MonoClass*) * klass->interface_count);
8146 args [0] = &klass->element_class->byval_arg;
8147 klass->interfaces [0] = mono_class_bind_generic_parameters (
8148 mono_defaults.generic_ilist_class, 1, args, FALSE);
8149 } else if (klass->generic_class) {
8150 MonoClass *gklass = klass->generic_class->container_class;
8152 klass->interface_count = gklass->interface_count;
8153 klass->interfaces = g_new0 (MonoClass *, klass->interface_count);
8154 for (i = 0; i < klass->interface_count; i++)
8155 klass->interfaces [i] = mono_class_inflate_generic_class (gklass->interfaces [i], mono_generic_class_get_context (klass->generic_class));
8158 mono_memory_barrier ();
8160 klass->interfaces_inited = TRUE;
8162 mono_loader_unlock ();